497 results about "Sodium salicylate" patented technology

The invention discloses a clean viscous acid for acid fracturing of a carbonate reservoir, which is applied to the technical fields of acidification and acid fracturing of petroleum carbonate reservoirs. The clean viscous acid consists of the following components in percentage by weight: 3-7 percent of hexadecyl trimethyl ammonium bromide, 0.3-0.7 percent of sodium salicylate, 15-28 percent of hydrochloric acid, 0.125-0.25 percent of citric acid or 0.05-0.1 percent of CX-301 or 0.3-0.5 percent of TW-1 serving as an iron ion stabilizing agent, 0.2-0.25 percent of a diimidazoline quaternary ammonium salt and the balance of water. The clean viscous acid has high retardative property, the retarding rate can reach 42-56 percent, the fresh acid viscosity is 25-40 mPa.S, and the acid liquor viscosity rises during acid fracturing of the carbonate reservoir. When the hydrogen ion concentration falls till the pH is more than or equal to 2, the acid liquor viscosity rises for forming viscoelastic gel, the permeation resistance of an acid liquor in a high permeation layer is increased, and the length of an acid etching crack is prolonged. Reacted residual acid gel can undergo gel breaking automatically, is free from residues, is easy for discharging, and has small damage to stratums.

The invention relates to an equipment cleaning agent which is used in the field of petroleum and chemical industry, in particular to a ferrous sulfide dirt neutral complexing cleaning agent which is used for washing a synthesized ammonia low-temperature methanol washing unit system in the petroleum chemical industry and the coal chemical industry. The ferrous sulfide dirt neutral complexing cleaning agent is prepared from the following raw materials in parts by weight: 5 to 8 parts of sodium gluconate, 7 to 11 parts of sodium salicylate, 20 to 26 parts of gadoliniam diethylene triamine pentaacetic acid, 20 to 26 parts of sodium ethylene diamine tetracetate, 40 to 46 parts of propenoic acid-itaconic acid copolymer, 25 to 32 parts of disodium polyepoxysuccinicate, 12 to 15 parts of sodium hydroxyphenylace, 3 to 7 parts of triethanolamine, 3 to 7 parts of hydrogen peroxide, 0.1 to 0.3 part of lauryl sodium sulfate, 0.1 to 0.3 part of polydimethyl siloxane fluid and 40 to 45 parts of water. The ferrous sulfide dirt neutral complexing cleaning agent is free from generating hydrogen sulfide when cleaning the ferrous sulfide dirt and corroding the equipment and has strong capacity for complexing the iron ions, the removal speed is fast, the decontamination rate is more than 98 percent, the neutralization and passivation are unnecessary to carry out after the chemical washing, and the equipment can be put into operation immediately.

The invention provides a water-based clean fracturing fluid for fracturing. The fracturing fluid is formed by a small canonic antiswelling agent, organic sodium salt, a cationic surface active agent and water, wherein the concentration of the small canonic antiswelling agent is 0.4 percent by mass, the concentration of the organic sodium salt is 0.06 to 0.18 percent by mass, the concentration of the cationic surface active agent is 0.2 to 0.6 percent by mass, the mass ratio of the cationic surface active agent and the organic sodium salt is 1:0.3, the organic sodium salt is sodium salicylate, and the cationic surface active agent is any one or the mixture of 16-18 alkyl-3-methylammonium chloride. The invention can well solve the pollution problem of the fracturing fluid to the coal bed, simultaneously improve the sand-carrying performance of the fracturing fluid greatly, the price thereof is only 1.5 to 2.0 times of active water fracturing fluid and is far lower than that of guargum fracturing fluid and common clean fracturing fluid.

An improved method of preserving a molecule in a bodily fluid comprises: (1) providing a preservative solution comprising: (a) an amount of a divalent metal chelator selected from the group consisting of ethylenediaminetetraacetic acid (EDTA), (ethylenebis(oxyethylenenitrilo))tetraacetic acid (EGTA), and 1,2-bis(2-aminophenoxy)ethane-N,N,N′,N′-tetraacetic acid (BAPTA) and salts thereof in the range of from about 0.001 M to about 2 M; and (b) an amount of at least one chelator enhancing component selected from the group consisting of lithium chloride, guanidinium chloride, guanidinium thiocyanate, sodium salicylate, sodium perchlorate, and sodium thiocyanate in the range of from about 0.1 M to about 10 M; and (2) adding the preservative solution to the bodily fluid, thus preserving the molecule. The molecule can be a protein or a small molecule, such as a steroid. The invention also encompasses preservative compositions suitable for preserving proteins or small molecules, and kits. Preservative compositions can further include at least one enzyme inactivating component selected from the group consisting of manganese chloride, sarkosyl, and sodium dodecyl sulfate in the range of up to about 5% molar concentration. Compositions and methods according to the present invention have many diagnostic and forensic uses, in addition to being suitable for preparing compositions usable by hunters for attracting animals.

The invention relates to a delaying cross-linking polymer hard-gel in-depth profile controlling agent and a preparation method thereof. The profile controlling agent consists of the following raw materials: anionic poly aceylanide, sodium dichromate, sodium sulfite, soldium salicylate and water. The preparation method is carried out according to the following steps of: adding the required amount of anionic poly aceylanide into the required amount of water; after the anionic poly aceylanide is sufficiently dissolved, sequentially adding the required amounts of sodium dichromate, sodium sulfiteand soldium salicylate; and sufficiently stirring to obtain the delaying cross-linking polymer hard-gel in-depth profile controlling agent. The delaying cross-linking polymer hard-gel in-depth profile controlling agent and the preparation method thereof have the beneficial effects that the delaying cross-linking polymer hard-gel in-depth profile controlling agent is simple to prepare, has stable performances, is convenient to construct, has long gelling time and has strong gel strength after being gelled; the long-term and large-dose injection is realized on site; and the delaying cross-linking polymer hard-gel in-depth profile controlling agent disclosed by the invention can enter the deep position of an oil pool to block a preferential path so as to improve the waterflooding extraction effect and improve the recovery ratio of the oil pool. The delaying cross-linking polymer hard-gel in-depth profile controlling agent is applied for over 40 well times on site and has good applicationeffect.

The invention discloses organic infant shampoo, which is characterized by being prepared from the following raw materials: water, cocamidopropyl betaine, sodium laureth sulfate, PEG-80 sorbitan laurate, glycerol, PEG-150 distearate, PEG-7 glyceryl cocoate, a matricaria chamomilla extract, an olive leaf extract, a leontopodium alpinum flower extract, polyquaternium-10, sodium benzoate, sodium salicylate and lavender oil. The beneficial effects of the organic infant shampoo are as follows: a formula of the organic infant shampoo disclosed by the invention is scientific, mild and non-irritating;by adding the matricaria chamomilla extract, the olive leaf extract and the leontopodium alpinum flower extract, the organic infant shampoo can balance grease secretion, mildly and deeply clean scalpand hair and provide rich nutrition for the hair, the hair can be cared while being cleaned, the hair can become smooth, bright and elastic, and the organic infant shampoo has good scurf-removing anditch-relieving effects. The organic infant shampoo is suitable for being used by infants, children and people with allergic constitution.

The invention relates to a neutral blockage removing agent composition used for an oil recovery formation in an oilfield. The neutral blockage removing agent composition is prepared from the following raw materials in parts by weight: 10-14 parts of polyepoxysuccinic acid amine, 35-40 parts of diethylenetriaminepentaacetic acid amine, 33-37 parts of hydroxyl succinic acid amine, 20-25 parts of polyacrylamide, 7-10 parts of sodium polyaspartate, 10-14 parts of sodium gluconate, 10-15 parts of activated clay, 20-25 parts of potassium peroxodisulfate, 9-11 parts of hydroxyl butanedioic acid amine, 4-7 parts of sodium salicylate, 5-9 parts of hexamethylene tetramine, 0.2-0.3 part of vanadium pentoxide, 2-5 parts of starch, 5-8 parts of alpha-sulphonated fatty acid methyl ester and derivative thereof (MES) and 0.1-0.3 part ofdiethyl ethanolamine. The neutral blockage removing agent composition is used for the blockage removal of an oil pumping well and a screw pump well in the oilfield, can effectively solve the problems of cleaning blockage removal of the oil pumping well and the screw pump well in the oilfield and the corrosion of oil recovery equipment, has high blockage removing speed, is neutral and is free of corrosion; waste liquid for blockage removal can be degraded and does not need to be discharged onto the ground to be subjected to sewage treatment, no corrosion, dead angle, precipitation or secondary well blockage are generated, and more safety and more reliability are realized as compared with traditional pickling blockage removing, biological blockage removing and solvent blockage removing.

The invention discloses a pollution-free water body detoxication anti-stress agent for aquaculture and a preparation method and an application thereof, belonging to the technical field of aquaculture. The water body detoxication anti-stress agent for aquaculture comprises the following components in parts by weight: 2-5 parts of citric acid, 0.5-3 parts of tartaric acid, 0.5-2 parts of lauric acid, 1-5 parts of sodium salicylate, 0.5-3 parts of synergist, 0.5-2 parts of stabilizer and 80-90 parts of clean water. By the water body detoxication anti-stress agent for aquaculture, the water body buffer capability and anti-stress capability of aquatic animals can be improved, heavy metal ions can be rapidly complexed and degraded, toxicity of heavy metal ions and pesticide to aquatic animals is eliminated, content and toxicity of harmful substances such as ammonia nitrogen, nitrite and hydrogen sulfide in the water body are reduced, the damage of algae toxin to the aquatic animals is relieved and eliminated, a proper pH value of the water body is maintained, multiplied propagation of bacteria and virus is restrained or killed, the immune and disease resistance of aquatic animals can be rapidly enhanced, the anti-stress capability of aquatic animals is improved, and the functions of calling food, prompting appetite and enhancing the vigor of fish and prawn are realized.

The invention discloses a vehicle engine fluid, relating to an engine fluid for a vehicle engine cooling system. The vehicle engine fluid is composed of glycol, sodium stannate, sebacic acid, adipic acid, benzotriazole, sodium benzoate, sodium salicylate, 1-carboxyl-2-hexyl-5-(7-carboxyl)-hexamethylene-3-alkene, hydrolyzed polymaleic anhydride, silane coupling agent KH-550, bis-imidazoline, dye, sodium hydroxide, deionzied water and the like. The vehicle engine fluid has the advantages of good corrosion effect, stable property, excellent corrosion inhibition property, no precipitate and no toxicity, and is not easy to volatilize, can be well absorbed on the surface of metal so as to form an absorption film, and can effectively inhibit corrosion of an antifreeze solution on soldering tin; and the selected additive is cheap and available and has good economic benefits and social benefits, and the like. The vehicle engine fluid can be widely applied to a cooling system of a vehicle engine, especially is used as a vehicle antifreeze solution in a low-temperature region.

The present invention discloses a kind of microelement type complex foliage fertilizer and its preparation method. The described foliage fertilizer is formed from fulvic acid, sodium salicylate, alginic acid composite solution, special-purpose composite adjuvant and composite microelement solution (solution A and solution B), in which said solution A is made up by dissolving 100-150kg of citric acid in 250L of water with 60-80deg.C, then successively adding 100-150kg of FeSO4.7H2O, 50-100kg of CuSO4.5H2O, 20-50kg of MnCl2.6H2O and 250-300kg of Zn(NO3)2.7H2O, and the solution B is made up by dissolving 50-100kg of boric acid in 100 L of water with 40-60deg.C, then adding 20-50kg of potassium hydroxide, making them be fully reacted and regulating pH value to 5-6. Its preparation method includes the following steps: adding the solution B into the solution A, stirring them, adding 100-150kg of urea, adding 30-80L of fulvic acid, sodium salicylate and alginic acid composite solution, adding 1kg of sodium hydrogen sulfite and 20-50L of special-purpose adjuvant, regulating pH value to 3-3.5, then adding water to 1000L.

The invention discloses a pre-treating agent for surfaces of an aluminum profile and an aluminum alloy profile. The pre-treating agent comprises the following constituents by mass: 35-45 percent of water-solubility chromic salt, 0.1-3 percent of alkali metal zirconate, 0.1-2 percent of sodium salicylate, 5-10 percent of water-solubility coalescing agents, and 5-10 percent of wetting agents with the balance being water. The pre-treating agent for the surfaces of the aluminum profile and the aluminum alloy profile does not contain hexavalent chromium, and therefore environmental pollution is avoided, the pre-treating agent is stable in property and long in using period, a layer of transparent or light colored corrosion-resisting conversion coating can be formed on the surface of an aluminum profile workpiece, and a treated aluminum profile still maintains original metal characteristics. The conversion coating has extremely good corrosion-resistant performance and is firm in bonding, and the bonding force between the workpiece and the conversion coating and between the workpiece and paint can be notably increased. Besides, the using temperature range of the pre-treating agent is from the room temperature to 100 DEG C, the pre-treating agent can turn into a membrane quickly at the room temperature, and the effect is optimal when the pre-treating agent is heated to 20-50 DEG C.

The invention discloses a purification technology of a curcumin compound. Turmeric medicine serves as a raw material to be smashed and extracted by petroleum ether in a backflow mode; residue is subjected to ultrasound assistant extraction after warm immersing by sodium salicylate alcoholic solution; macroporous resin is added into extract to be separated and purified; mixture is eluted by acetone-2% glacial acetic acid (50:50); curcumin, demethoxy curcumin and bisdemethoxy curcumin fraction are respectively collected; reagent is recovered and is respectively dissolved by a small quantity of acetone; water of which the amount is three times of acetone is quickly added to be decentralized; and supernate is removed, and the mixture is precipitated, frozen and dried to obtain the product.

The invention relates to a testing agent for detecting ammonia nitrogen in water. The testing agent comprises A, B two packages, wherein the A is packaged by grinding and mixing sodium tartrate, natrium salicylicum, citric acid trisodium and nipride; the B is packaged by grinding and mixing sodium-hydroxide, lithium hydrate, citric acid trisodium, babysafe, symclosene and symclosene. When use the testing agent, adding a pack of A into sample water, adding a pack of B after placing 2 minutes, the water will display blue-green color if there's ammonia nitrogen in the water, and the darkness of the color is in proportion to the concentration of the ammonia nitrogen; placing 10 minutes, comparing it with the standard color matching card, color matching disc to read the concentration of the ammonia nitrogen in the water.

An improved method of preserving a molecule in a bodily fluid comprises: (1) providing a preservative solution comprising: (a) an amount of a divalent metal chelator selected from the group consisting of ethylenediaminetetraacetic acid (EDTA), (ethylenebis(oxyethylenenitrilo))tetraacetic acid (EGTA), and 1,2-bis(2-aminophenoxy)ethane-N,N,N′,N′-tetraacetic acid (BAPTA) and salts thereof in the range of from about 0.001 M to about 2 M; and (b) an amount of at least one chelator enhancing component selected from the group consisting of lithium chloride, guanidinium chloride, guanidinium thiocyanate, sodium salicylate, sodium perchlorate, and sodium thiocyanate in the range of from about 0.1 M to about 10 M; and (2) adding the preservative solution to the bodily fluid, thus preserving the molecule. The molecule can be a protein or a small molecule, such as a steroid. The invention also encompasses preservative compositions suitable for preserving proteins or small molecules, and kits. Preservative compositions can further include at least one enzyme inactivating component selected from the group consisting of manganese chloride, sarkosyl, and sodium dodecyl sulfate in the range of up to about 5% molar concentration. Compositions and methods according to the present invention have many diagnostic and forensic uses, in addition to being suitable for preparing compositions usable by hunters for attracting animals.

The invention discloses a slow-crosslinked high-strength jelly profile control water-plugging agent. The slow-crosslinked high-strength jelly profile control water-plugging agent comprises, by mass, 0.3% to 0.6% of a hydrophobic associating polymer, 0. 3% to 0.6% of a melamine resin crosslinking agent, 0.03% to 0.05% of a phenol crosslinking agent, 0.2% to 0.4% of an oxygen scavenger, 0.1% to 0.3% of a delayed crosslinking agent, 0.1% to 0.2% of a water loss inhibitor and the balance water. The phenol crosslinking agent comprises one or two of resorcinol and hydroquinone. The oxygen scavenger comprises one or more of thiourea, sodium sulfite and sodium bisulfate. The delayed crosslinking agent comprises one or two of ammonium chloride and sodium trimetaphosphate. The water loss inhibitor comprises one or two of sodium malonate and sodium salicylate. The gelatinization time of the jelly provided by the invention is adjustable and is 6 days or more. After gelatinization, the jelly strength at least reach to level H based on visual inspection. The water-plugging agent has excellent thermal stability, does not lose water after hot treatment at a temperature of 60-90 DEG C for 270 days and can satisfy the requirements on most of deep oil reservoir displacement.

The present invention provides a method for controlling allergens by applying an anti-allergenic effective amount of one or more anti-allergenic agents selected from hyperbranched polymers, amines (including tertiary amines), hops extracts, anti-allergenic iodo derivatives, quaternary ammonium compounds, hydantoins and hydantoin blends, polyhexamethylenebiguanidine hydrochloride, natural oils, anti-allergenic natural acids, sodium carbonate, chelating agents, cyclic ketone acids (e.g., dehydroacetic acid (DHA) and salts thereof (including sodium dehydroacetate and the monohydrate thereof)), anti-allergenic surfactants, organic phosphates, hydrogen peroxide, butylene glycol, phenoxyethanol, sodium salicylate, and mixtures thereof, to the allergens or a substrate on which they are located. These anti-allergenic agents are particularly effective at controlling household allergens, such as dust mites.

The invention relates to a descaling agent for water scale of condensing equipment and a descaling method. The descaling agent comprises the following materials in percentage by weight: 15%-30% of dissolving agents, 2%-5% of permeating agents, 1%-5% of corrosion inhibitors, 10%-30% of cosolvents, 20%-30% of purified water and the balance of ethanol, wherein the dissolving agents are selected from oxalic acid, citric acid, ascorbic acid, salicylic acid and glacial acetic acid; the permeating agents are selected from diethyl succinate, butyl cellusolve and sulfonated dioctyl succinate sodium salt; the corrosion inhibitors are selected from urotropine, aniline and diethyl thiourea or rodine; the cosolvents are selected from para-benzoic acid, urea, cyclohexanone, acetamide and sodium salicylate. The descaling agent disclosed by the invention is obtained by blending the raw materials, has high descaling capacity and higher descaling speed by utilizing combined effect, is less in corrosion on equipment and low in price and can save a large amount of cleaning expense, enhance the equipment operation level, the energy utilization level and the production efficiency and greatly reduce the product production cost.

The invention discloses a diesel DPF cleaning regenerating agent and application thereof. The diesel DPF cleaning regenerating agent comprises a solubilizer, sodium lignosulphonate, sodium salicylate,a carbon deposit dissolving agent, a dispersing agent, a wetting agent, a surfactant, rust inhibitor and water; the diesel DPF cleaning regenerating agent is applied to the regenerating process of acarbon deposit-blocked DPF system. The diesel DPF cleaning regenerating agent has the advantages as follows: the diesel DPF cleaning regenerating agent not only has an extremely good cleaning effect,but also is safe, environment-friendly and pollution-free; when the diesel DPF cleaning regenerating agent is applied to the regenerating process of the diesel DPF system failing due to carbon depositblockage caused by poor fuel quality and incomplete combustion, carbon deposit, soot, colloid, oil sludge and other blocking substances in DPF pore passages can be safely and efficiently dissolved, dispersed and cleaned, so that the maintenance or replacement cost of the blocked DPF is reduced, the fuel consumption of a diesel is reduced, the engine power thereof is restored and the DPF tail gaspurifying effect is improved.

The invention discloses ammonia nitrogen test paper and an application method thereof. The test paper is prepared according to the following steps: (1) preparing a reagent solution, namely dissolving analytically pure sodium salicylate, sodium potassium tartrate tetrahydrate and sodium nitroprusside in ammonia-free water to prepare a solution in which the concentration of the sodium salicylate is 280g / L to 380g / L, the concentration of the sodium potassium tartrate tetrahydrate is 50g / L to 68g / L and the concentration of the sodium nitroprusside is 0.40g / L to 0.54g / L; (2) soaking, namely completely soaking quantitative immediate-speed filter paper in the solution (1), oscillating for 60 to 120 minutes on a constant-temperature oscillator; (3) molding, namely taking out the filter paper, arranging in parallel at room temperature, suspending, drying in air, cutting and sealing by plastic for later use. The test paper is simple to prepare, convenient to operate, short in color development time, high in removability and capable of being used for rapidly and accurately testing the content range of ammonia nitrogen in water.

The invention discloses a well-cementation working fluid system prepared from waste drilling fluid and drill cuttings. The well-cementation working fluid system prepared from the waste drilling fluid and drill cuttings is prepared from the following components in parts by weight: 100 parts of the waste drilling fluid, 10 to 100 parts of the waste drill cuttings, 30 to 100 parts of curing agent, 0.5 to 5 parts of activating agent, 0.5 to 5 parts of activation accessory ingredient, 0.1 to 3 parts of antipollution agent and 0.1 to 3 parts of diluting agent, wherein the curing agent is formed by compounding slag and sepiolite in a mass ratio of 50 to 2; the activating agent is sodium hydroxide or potassium hydroxide; the activation accessory ingredient is one or a mixture of sodium metasilicate nonahydrate, sodium carbonate and calcium carbonate; the antipollution agent is one or a mixture of sodium salicylate, potassium citrate and sodium pentaborate; the diluting agent is one or a mixture of sodium lignin sulfonate, calcium lignosulphonate and hydroxyethyl cellulose. The well-cementation working fluid system prepared from the waste drilling fluid and drill cuttings is reliable in principle and low in cost, is environment-friendly and is convenient in field application; a resource is saved; the well-cementation working fluid system is particularly applied to cementing operation of an oil gas well with low abundance, low pressure and low permeability on a leaky block.

The invention relates to a process method for preparing a polyaniline film by electropolymerization on an electrogalvanized steel plate. The invention belongs to the technical field of electrochemical preparation of thin films on metal surfaces. The invention discloses a process for preparing polyaniline film by electropolymerization on electrogalvanized steel sheet, which is characterized in that: preparing polyaniline film on electrogalvanized steel sheet is a one-step electropolymerization preparation method; In the neutral aqueous solution of sodium salicylate, the aniline monomer is used as the raw material, and the aniline is polymerized in the ice-water bath by the constant potential method, the constant current method or the cyclic voltammetry method in the electrochemical method. The method of the present invention has the advantages of: a single one-step method, simple process, single reaction, and simple device; mild reaction conditions and high efficiency; the liquid solution is harmless and non-toxic, has no pollution to the environment, and is beneficial to environmental protection; the prepared The product has good corrosion resistance and is suitable for use as an anti-corrosion material in industry.

The invention belongs to the technical field of lithium ion battery preparation, and particularly relates to a preparation method of a nickel-cobalt-manganese ternary precursor material. The method comprises the following steps of: (1) preparing a nickel-cobalt-manganese salt solution with a certain concentration by using soluble salts nickel sulfate, manganese sulfate and cobalt sulfate as raw materials; (2) adding sodium salicylate into the prepared nickel-cobalt-manganese solution according to a certain proportion to form a mixed solution, then adding alkali liquor as a precipitator, and carrying out coprecipitation reaction to obtain mixed slurry; (3) dividing the coprecipitation reaction into two stages, namely a high-pH nucleation stage and a low-pH growth stage, wherein a complexingagent in a certain proportion is added in the low-pH growth stage for the precipitation reaction, and a concentrator is used for increasing the solid content in the whole coprecipitation reaction process; and (4) finally, aging, washing and drying the obtained product to obtain the nickel-cobalt-manganese precursor. By adopting the preparation method disclosed by the invention, the nickel-cobalt-manganese precursor with a high sphericity degree and a compact surface can be obtained.

The invention discloses a full-nutrient foliar fertilizer. Every 1000 g of full-nutrient foliar fertilizer comprises 238.06 g of photosynthetic bacteria, 21.98 g of glacial acetic acid, 109.88 g of potassium fulvic acid, 36.63 g of sorbitol, 21.98 g of xylitol, 21.98 g of mannitol, 14.28 g of potassium hydroxide, 11.63 g of sodium hydroxide, 219.75 g of magnesium calcium nitrate, 219.75 g of urea,10.99 g of wood potassium, 10.99 g of sodium glutamate, 18.4 g of boric acid, 3.66 g of ammonium molybdate, 3.2 g of EDTA chelated iron, 3.2 g of EDTA chelated manganese, 3.2 g of EDTA chelated copper, 3.2 g of EDTA chelated zinc, 0.73 g of sodium salicylate, 10.99 g of lysine, 0.15 g of potassium iodide, 10.99 g of tryptophan, 1.46 g of calcium pantothenate, 1.46 g of biotin and 1.46 g of nicotinamide. The fertilizer can promote rooting in the seedling stage, and 2-3 more new roots can grow; when the full-nutrient foliar fertilizer is used, the content of chlorophyll in leaves is increased,the color of the leaves is deep, wax on the surfaces of the leaves is increased, and the disease resistance of plants is improved.

The invention discloses a reagent for quickly testing the content of ammonia and nitrogen in a water sample. The reagent comprises three packages A, B and C, wherein the package A comprises the following raw materials: 400 g to 600 g sodium salicylate, 400 g to 600 g sodium potassium tartrate and 10 g to 20 g sodium nitroprusside, the reagent is added into a mortar to be fully ground and then is sub-packaged to be 100 mg per tube; the package B comprises the following raw materials: 100 g to 200 g sodium hydroxide, the volume of a volumetric flask is set to be 1000 ml, and the reagent is sub-packaged to be 10 ml per flask; the package C is a sodium hypochlorite solution of 10 ml per bottle. A method for quickly testing the content of ammonia and nitrogen in the water sample comprises the following steps: when the water sample is tested, adding 0.05-0.1 ml of the reagent B into a tube of the package A, adding 2-4 ml of the water sample to be tested and 0.05-0.1 ml of the reagent C in sequence, shaking well, standing at the room temperature of 25 DEG C for 5-10 minutes, observing the color change, and comparing with a standard color card to read out the ammonia and nitrogen concentration of the water sample to be tested.

Belonging to the technical field of minimally invasive rust removal on metal surfaces, the invention, more specifically, relates to an environment-friendly rust remover. The rust remover is characterized in that: corrosion at places that cotton swabs, cloth strips, and cotton threads can reach can all be removed, and the rust remover also has a short-term antirust function, so that enough time can be acquired for long-acting anticorrosion treatment. The rust remover is especially suitable for corrosion and rusty spots appearing on some precision equipment, instruments and meters, and processed precision parts and components. Additionally, for the corrosion problem of some electroplated parts, the rust remover also can reach very good surface treatment effects. The rust remover disclosed in the invention is composed of the following components by mass: 5-15% of tartaric acid, 10-20% of citric acid, 1-5% of phytic acid, 1-5% of sodium salicylate, 0.1-0.5% of a surfactant OP-10, and the balance distilled water.

A veterinary medicine for treating the disease in digestive tract of animal and fowl is prepared from acetylmethaquine, anisodamine hydrochloride, sodium salicylate, and 4 Chinese-medicinal materials including pink plumepoppy herb, coptis root, etc.

The invention relates to agricultural agent for protecting the cotton seeds against the damage from low temperature, in particular to antifreezing adverse-resistant cotton seed treating agent which is used for dressing or coating the cotton seeds, aiming at solving the problems that no agricultural agent for effectively protecting the cotton seeds against the damage from low temperature is available at present and the single bactericide or nutritional agent for dressing the cotton seeds has poor effect of protecting the cotton seeds against the damage from low temperature. The antifreezing adverse-resistant cotton seed treating agent is produced from the following raw materials by weight percent: 8-9% of sodium salicylate, 45-46% of dexon, 45-46% of monopotassium phosphate and the balance of DA-6 and abscisic acid, wherein the weight of the DA-6 accounts for 0.06-0.07 per mill of the total weight of the sodium salicylate, the dexon and the monopotassium phosphate, and the weight of the abscisic acid accounts for 0.00025-0.00026 per mill of the total weight of the sodium salicylate, the dexon and the monopotassium phosphate. The antifreezing adverse-resistant cotton seed treating agent is suitable for treating the cotton seeds and can strengthen the vitality of the cotton seeds, improve the freezing resistance and the disease resistance of the cotton seeds, promote the nutritive growth of the cotton seeds, comprehensively improve the adverse resistance of the cotton seeds and increase the yield of the cotton.

The dehydrated alkali metal salts of carboxylic acid are dissolved in the alcohol such as methanol or ethanol or butanol to make their solution in corresponding alcohol. The solution alcohol is further treated with carbon dioxide under pressure or at atmospheric pressure at elevated temperature such as 150 to 200° C. The carboxylic acid gets converted into corresponding alkyl ester and calcium carbonate or sodium carbonate or potassium carbonate as the byproduct. Calcium lactate or Sodium lactate or Sodium acetate or Sodium benzoate or Sodium salicylate as alkali metal salt solution prepared in Methanol or Ethanol or Butanol when treated with carbon di-oxide under pressure or at atmospheric pressure at elevated temperature gets converted to Methyl lactate or Ethyl lactate or Methyl acetate or Methyl benzoate or Methyl salicylate as product.

The invention belongs to the field of nanometer materials, and relates to a preparation method of a silicon dioxide material with a hierarchical pore structure. Tetraethyl orthosilicate is adopted asa silicon source, triethanolamine is adopted as a basic catalyst, sodium salicylate and hexadecyl trimethyl ammonium bromide are adopted as a structure-directing agent and a template, and the silicondioxide material with the hierarchical pore structure is prepared in a water solution. The silicon dioxide material prepared through the method is uniform in particle size and larger in pore volume, and not only has a dendritic large pore path structure radially from inside to outside but also has a small-size mesoporous structure. The method provided by the invention is simple to prepare, low incost, good in repeatability and friendly to the environment, the particle size is adjustable in the range from 50 to 500nm, and large-scale preparation can be realized. The silicon dioxide material with the hierarchical pore structure prepared by the invention can be applied to a drug delivery carrier, and particularly has a remarkable advantage on a common load of small molecule drugs and high molecular weight protein.

The invention relates to a green and environment-friendly preparation method for salicylic acid with a high yield. The preparation method comprises the following steps: 1, preparing sodium phenate powder; 2, preparing a sodium salicylate solution; and 3, preparing a finished product salicylic acid. Compared with previous salicylic acid preparation processes, the water demand is relatively small, so that water resource waste is greatly reduced; sodium phenate is quickly dried, so that resinification and coloring of sodium phenate can be effectively avoided, and the product yield of salicylic acid is greatly increased; meanwhile, the carboxylation reaction time is short, the reaction product is higher in purity while the energy consumption is reduced, and the product yield of salicylic acid is increased again. In conclusion, the green and environment-friendly preparation method for salicylic acid with the high yield, provided by the invention, has the characteristics of being environment-friendly, water-saving, energy-saving, efficient and high in yield.