301 results about "Ethylenediamine tetraacetate" patented technology

An aqueous hard surface cleaner with improved soil removal is provided and has, as components, the following:(a) either an anionic, nonionic, amphoteric surfactant, and mixtures thereof with optionally, a quaternary ammonium surfactant, the total amount of the surfactants being present in a cleaning effective amount;(b) at least one water-soluble or dispersible organic solvent having a vapor pressure of at least 0.001 mm Hg at 25° C., present in a solubilizing-or dispersion-effective amount;(c) Tetrapotassium ethylenediamine-tetraacetate (potassium EDTA) as a chelating agent, present in an amount effective to enhance soil removal in said cleaner; and(d) the remainder, water.

The invention discloses a cleaning agent for optical glass, which comprises the following components in weight percentage: 2-4% of long carbon chain dibasic acid; 6-10% of an anionic surfactant; 2-4% of an inorganic base; 2-6% of a nonionic surfactant; 2-4% of a special surfactant; 6-12% of a chelator; 10-20% of an organic base; and 40-70% of deionized water, wherein the long carbon chain dibasic acid is dicarboxylic acid with 21 carbon atoms, the anionic surfactant is dodecylbenzene sulfonic acid, the inorganic base is industrial NaOH, the nonionic surfactant is primary alcobol ethoxylate AEO9, the special surfactant is sodium POE nonylphenol ether sodiosulfosuccinate, the chelator is a mixture of Tetrasodium Ethylenediamine Tetraacetate and sodium gluconate, and the organic base is diethanol amine. The cleaning agent for optical glass provided by the invention has low corrosivity and good cleaning effect.

The invention specifically relates to an anti-bacterial hand-washing solution and a preparation method thereof, belonging to the field of washing agents. The anti-bacterial hand-washing solution is mainly composed of fatty alcohol polyoxyethylene ether sodium sulfate, cocoamidopropyl betaine, alkyl glucoside, polyquaternary ammonium salt, fatty glyceride, humectant, mixed plant extract, tetrasodium ethylenediamine tetraacetate, sodium chloride, citric acid, jojoba oil, 1,2-pentanediol and essence. The preparation method comprises the following steps: dissolving fatty alcohol polyoxyethylene ether sodium sulfate, cocoamidopropyl betaine and fatty glyceride with water with a total amount of 70 to 80%; uniformly mixing jojoba oil, polyquaternary ammonium salt, humectant and alkyl glucoside; and mixing two mixed solutions obtained in the previous two steps, adding the rest components and carrying out uniform mixing under stirring. The anti-bacterial hand-washing solution provided by the invention has skin-care, skin-moistening, antibacterial, bacteriostatic, anti-allergy, soothing, anti-inflammatory and hand-microcirculation-improving effects and is a multifunctional hand-washing solution with strong sterilization and detergency capabilities and substantial skin-care and skin-moistening effects.

The invention provides an environment-friendly rustproof cleaning agent prepared from the following raw materials in percentage by weight: 2-5% of one or mixture of multiple of phosphoric acid or phosphate, 2-5% of one or mixture of multiple of boric acid or borate, 0-5% of strong base, 0.5-1% of anionic surface active agent, 0.5-1% of nonionic surface active agent, 0.5-1% of one or more than one of edetic acid or ethylenediamine tetraacetates and the balance of water. According to the invention, the raw materials are added into water in sequence to obtain the rustproof cleaning agent. The environment-friendly rustproof cleaning agent provided by the invention is safe and environment-friendly and has good dustproof cleaning capability.

The invention belongs to the technical field of preparation of additives, and in particular relates to a chlorine-free and alkali-free liquid setting accelerator and a preparation method thereof. The preparation method comprises the steps of adding aluminum sulfate and aluminum hydroxide into deionized water, and heating to obtain mother liquor of aluminate; then, adding magnesium fluosilicate and disodium ethylenediamine tetraacetate into the deionized water, and heating to obtain a magnesium fluosilicate solution; mixing the magnesium fluosilicate solution with the mother liquor of aluminate, then adding organic amine, organic acid and a stabilizer, and stirring to obtain the chlorine-free and alkali-free liquid setting accelerator. The setting accelerator prepared by the method has the characteristics of being small in mixing amount and good in setting acceleration effect; furthermore, after the setting accelerator is used, the mechanical properties of the concrete are improved, and the compressive strength of the concrete is increased; therefore, the chlorine-free and alkali-free liquid setting accelerator is an ideal concrete additive.

The invention provides essential oil condensation beads for washing clothes. The essential oil condensation beads comprise, by weight, 20-25% of sodium C14-16 olefin sulfonate, 15-20% of fatty alcohol polyoxyethylene ether (9EO), 10-12% of sodium alcohol ether sulphate, 8-10% of lauryl alcohol sulphate triethanolamine, 2-4% of polyethylene glycol, 1-3% of cationic alkyl polysaccharide, 1-2% of D-panthenol, 0.3-0.7% of phenoxyethanol, 0.05-0.01% of disodium ethylenediamine tetraacetate, 0.5-1% of jasminum essential oil, 0.05-0.1% of triclosan, 0.1-0.2% of protease, 0.002-0.005% of red-33 pigment and the balance deionized water. The invention further provides a preparing method for the essential oil condensation beads. The essential oil condensation beads have the multiple effects of washing, caring, sterilizing, deodorizing and physical and mental delighting, and are convenient to use.

The invention discloses a repair method of chromium-contaminated soil, which belongs to the technical field of environment engineering. The method comprises the following steps: reducing hexavalent chromium in the chromium-contaminated soil, removing trivalent chromium and performing sewage treatment. Ferrous sulfate is added into the chromium-contaminated soil, and the reaction environment is adjusted, so that the efficiency for reducing the hexavalent chromium in the chromium-contaminated soil into the trivalent chromium is improved, and conditions are provided for removing chromium; chromium in the soil is extracted by adopting disodium ethylenediamine tetraacetate, the removal rate of the chromium in the soil is increased by adopting microwave heating, and the reaction time is shortened; sodium sulphide is added into chromium sewage, and the reaction environment is adjusted, so that the settling efficiency of heavy metals in the sewage is improved; and additionally, the sewage is converted into disodium ethylenediamine tetraacetate solution, so that resource recovery and utilization are realized. According to the method, the hexavalent chromium is converted into the trivalent chromium to be treated, so that the environmental risk in the repair process is reduced; the chromium-contaminated soil is converted into chromium sewage for treatment, so that the treatment efficiency is improved, and the treatment effect is guaranteed; and the method has the characteristics of no secondary pollution, high efficiency, rapidity, high resource utilization rate and the like.

The invention discloses a pollution-free, high-efficiency and long-distance pipe installing and cleaning system, and belongs to the field of pipe cleaning. The pollution-free, high-efficiency and long-distance pipe installing and cleaning system comprises a ball sending device, a ball receiving device, pipe cleaners and a chemical agent, wherein the ball sending device and the ball receiving device are installed at the two ends of a pipe to be cleaned; the pipe cleaners and the chemical agent form a pipe-cleaning train of the pipe cleaner-the chemical agent-the pipe cleaner; the pipe cleaners comprise a first pipe cleaner and a second pipe cleaner; the first pipe cleaner is sent into a pipe to be cleaned and at a 10cm position from an inlet; the second pipe cleaner is put into the ball sending device; the chemical agent is positioned between the two pipe cleaners; the chemical agent comprises a passivating agent or a degreasing agent; the passivating agent comprises 2-3% of sodium nitrite, 0.5-1% of trisodium phosphate and 96-97.5% of water; the degreasing agent comprises 2-3.5% of sodium tripolyphosphate, 1-2% of sodium carbonate, 0.5-1.5% of sodium hydroxide, 0.2-0.4% of sodium borate, 0.1-0.2% of disodium ethylenediamine tetraacetate, 0.05-0.1% of sodium oleate, 0.05-0.1% of sodium dodecyl sulfate, 0.05-0.1% of alkylphenol ethoxylate and 92.1-96.05% of water. The pollution-free, high-efficiency and long-distance pipe installing and cleaning system can achieve synchronous and high-efficiency operation of physical cleaning and chemical cleaning of a long-distance pipe.

The invention relates to a cyanide-free silver plating solution additive which comprises the following components by ratio: 0.1-10g/ l of brightener, 5-10g/ l of leveling agent, 100-600g/ l of complexing agent and the balance of plasma water, wherein the brightener is one or mixture of more in nitrogen-containing compound, triazole, benzotriazole, 2-hydroxypyridine, pyridine, 22 dipyridyl, 1, 10-phenanthroline, triethylene tetramine and diethylene triamine according to any ratio; the leveling agent is one or mixture of more in aromatic hydrocarbon compounds, naphthalene, 1-methylnaphthalene, 1, 4-naphthoquinone and 1-naphthol according to any ratio; the complexing agent is one or mixture of more in disodium ethylenediamine tetraacetate, niacin, aminosulfonic acid and potassium pyrophosphate according to any ratio. The cyanide-free silver plating solution additive has the beneficial effects that the plating solution is stable, low in toxicity and good in dispersing ability; the obtained plating layer is bright and fine as well as good in binding force; the technology adopts the environment-friendly organic additive which does not contain heavy metal and sulfide; the plating layer is good in corrosion resistance. Furthermore, the cyanide-free silver plating solution additive can be directly used for parts such as brass, copper, chemical nickel and the like, preplating is not needed, and the binding force is also guaranteed.

The present invention relates to pathological examination, especially to a liquid-based cell preservation solution used in pathologically examining cells such as human cervical mucus, sputum, urine, thoracic liquid, and tracheal mucus. The liquid-based cell preservation solution is characterized by being prepared from alcohols, a sodium phosphate buffer solution, disodium ethylenediamine tetraacetate, 0.08-0.12% sodium chloride, potassium chloride, formaldehyde, dithiothreitol, calcium acetate, magnesium acetate and the like. The cell preservation solution cannot only maintain the cell structure stability and reduce the agglomerated precipitation of the cell mucus and the cell breakage loss, but also enables the cells easily to be stained, improves the clarity of the cell sheets, and facilitates smooth performance of the examination work. Moreover, the cell preservation solution is low in cost and easy to promote and use.

The invention discloses a pollution-free, high-efficiency and long-distance pipe installing and cleaning method, and belongs to the field of pipe cleaning. The pollution-free, high-efficiency and long-distance pipe installing and cleaning method comprises the following steps: installing a ball sending device and a ball receiving device, temporarily testing the leakage and the pressure of a system, sending a diameter-measuring ball, drying, derusting, passivating, chemically degreasing, drying, inspecting and accepting, performing nitrogen protection and transferring, wherein in the derusting, passivating and chemically degreasing steps, a pipe-cleaning train of a pipe cleaner-a chemical agent-a pipe cleaner is used, namely the chemical agent is integrally injected into a space between a first pipe cleaner and a second pipe cleaner; the chemical agent comprises a passivating agent or a degreasing agent; the degreasing agent adopts the formulation as follows: 2-3.5% of sodium tripolyphosphate, 1-2% of sodium carbonate, 0.5-1.5% of sodium hydroxide, 0.2-0.4% of sodium borate, 0.1-0.2% of disodium ethylenediamine tetraacetate, 0.05-0.1% of sodium oleate, 0.05-0.1% of sodium dodecyl sulfate, 0.05-0.1% of alkylphenol ethoxylate and 92.1-96.05% of water. By the pollution-free, high-efficiency and long-distance pipe installing and cleaning method, synchronous and high-efficiency operation of physical cleaning and chemical cleaning of a long-distance pipe can be achieved.

The invention discloses a film-spraying waterproof material which is prepared from the following raw materials in parts by weight: 100 parts of magnesium acrylate monomer solution, 0.01-0.1 part of tetrasodium ethylenediamine tetraacetate, 0.01-0.1 part of copper acetate, 2-20 parts of silica white and 2-20 parts of calcium carbonate. The invention also discloses a preparation method of the film-spraying waterproof material, which comprises the following steps: adding the tetrasodium ethylenediamine tetraacetate and copper acetate into the magnesium acrylate monomer solution, uniformly stirring and mixing, adding the silica white and calcium carbonate, and stirring with a high-speed dispersion machine to obtain the film-spraying waterproof material. The invention also discloses an application method of the film-spraying waterproof material. The film-spraying waterproof material disclosed by the invention solves the problem that the original film-spraying waterproof material must be stored and transported in the refrigeratory state under high-temperature conditions, saves the cost, widens the application range, and lays solid foundation for the development of the film-spraying waterproof material.

The invention discloses a porous adsorption plate with multiple functions on petroleum hydrocarbon polluted water bodies and a preparation method thereof. The preparation method comprises the following steps: preparing a NH4HCO3 solution, a NH4H2PO4 solution, a Ca(NO3)2 solution, a NH4OH solution, a hydrochloric acid solution, a NH4Cl water solution and a calcium potassium ethylenediamine tetraacetate solution into a mixed solution F; preparing urea and formalin into a mixed solution L; preparing a poly-beta-hydroxy-butyrate chloroformic solution and a polyethyleneglycol chloroformic solution into a mixed solution M; dropwisely adding the mixed solution L into the mixed solution M to obtain a mixed solution N; dropwisely adding the mixed solution F into the mixed solution N to obtain a mixed solution O; injecting distilled water into a container filled with liquid nitrogen to prepare ice granules, screening, and compacting in a mold; and casting the mixed solution O into the mold to perform freeze molding, demolding and refrigerating to obtain the porous adsorption plate with multiple functions on petroleum hydrocarbon polluted water bodies. The manufacturing technique is simple; and the prepared adsorption plate has high treatment efficiency for petroleum hydrocarbon pollutants, and can not bring about secondary pollution and damage onto the ecological environment of the water bodies.

The invention discloses a cleaning wipe and a preparation method thereof. The cleaning wipe comprises the following components by weight: 0.01%-0.10% of benzalkonium chloride, 0.5%-3.0% of a rough melic extract, 5% of a surfactant, 0.05% of disodium ethylenediamine tetraacetate, 0.01-1% of a synergist, 0.1% of an aloe extract, 0.01-0.2% of citric acid and the balance of deionized water. Accordingto the invention, broad-spectrum and high-efficiency benzalkonium chloride is used as an antibacterial agent, and the rough melic extract with a special antibacterial effect is added to effectively enhance an antibacterial property of benzalkonium chloride at a low concentration and compensate for an antibacterial spectrum of pseudomonas aeruginosa and other microbes; the cleaning wipe has advantages of mild formula, no alcoholic component, biodegradability, no irritation, no corrosion and good stability, can clean and sterilize the skin, eliminates hygienic dead angles, and leaves no health hazards.

The invention discloses an acidic electroplating zinc-nickel alloy electrolyte, a preparation method and an electroplating method thereof; the electrolyte comprises a basic electrolyte and additives; the basic electrolyte is a weakly acidic solution which comprises zinc ions with mass concentration of 27-38g/L, nickel ions with mass centralization of 23-31g/L, chloride ions with mass concentration of 150-220g/L and boric acid with mass concentration of 25-35g/L at Ph value of 4.8-5.4 and at temperature of 28-35 DEG C; and the additives comprise a brightening agent of 1-12 ml/L, a walk agent of 3-30 ml/L and a disodium ethylenediamine tetraacetate complexant of 10-50 ml/L. The acidic electroplating zinc-nickel alloy electrolyte is rational in proportion and proper in matching; the galvanizing efficient is improved by 30-40% compared with the traditional acidic galvanizing; the corrosion resistance of a zinc-nickel coating can be improved remarkably and the service life of the coating is prolonged; the coating is high in hardness, corrosion resistance, abrasive resistance, pyro-oxidation resistance, compactness and comprehensive performance; the electrolyte does not need to the post-treatment technique, so that the adopted electroplating method is saved in cost, efficient and rapid, convenient in operation and far superior to the traditional alkaline zinc-nickel electroplating.

The invention relates to an immunoturbidimetric assay apolipoprotein E detection kit, and relates to the technical field of kit. The kit is composed of three parts which are an R1 reagent, an R2 reagent, and a calibrator. The R1 reagent is composed of 40-50mmol/L of a buffer solution with a pH value of 7, 70-150mmol/L of a surfactant, 15-30mmol/L of disodium ethylenediamine tetraacetate, and 0.1-1% of a preservative. The R2 reagent is prepared by adding anti-human-apolipoprotein-E antiserum with a volume ratio of 30-50% into a certain amount of the R1 reagent. The calibrator is 80-200g/L ApoE antigen, and also comprises 0.2-15% of a preservative, 1-4% of a stabilizing agent, and 1-10% of a surfactant, wherein the percentages are human serum matrix volume amount percentages. The kit has the advantages of simple operation, high sensitivity, good specificity, fast determination, and accurate and reliable result.

The invention relates to a high-efficiency low-foam phosphorus-free sterilizing tableware cleanser applicable to large-scale machine washing, which is mainly prepared from sodium metasilicate, sodium peroxycarbonate, sodium dodecyl benzene sulfonate, polyethylene glycol (400), alkylphenol ethoxylate, fatty alcohol-polyoxyethylene ether, tetrasodium ethylenediamine tetraacetate and sodium hydroxide. The tableware cleanser has the characteristics of no phosphorus, sterilization, high washing capability, simple operation, no chlorine residue and the like. The tableware cleanser is an ideal machine washing cleanser applicable to enterprises engaging in concentrated tableware washing, such as hotels, hospitals, restaurants, pubs, dining halls and the like.

The invention provides a PVC compound stabilizer. The PVC compound stabilizer is characterized by being composed of, by mass, 85-90% of a main stabilizing agent and 5-15% of a subsidiary stabilizing agent; the main stabilizing agent is composed of polyvinylpyrrolidone, bis(5-oxo-L-prolinato-N1,O2) zinc, calcium disodium ethylenediamine tetraacetate and titanium tetraisopropanolate, and the subsidiary stabilizing agent is composed of N,N-ethylene bis-stearamide, pentaerythrityl tetrastearate, epoxidized linseed oil and mannitol. The invention further discloses a preparation method of the PVC compound stabilizer. The PVC compound stabilizer has the advantages of being free of toxin, environmentally friendly, good in lubricity and the like, is high in thermal stability, high in transparency, high in impact resistance and high in profile welded corner strength, can reduce damage to PVC molecules caused by ultraviolet light, improve outdoor aging performance of a product and further has good internal and external lubricating properties, and processing can be conducted stably.

The invention discloses a preparation method of a freeze-dried MPO (myeloperoxidase) calibrator and a freeze-drying protection solution. The freeze-drying protection solution is prepared from bovine serum albumin, mannitol, a protein stabilizing agent, polyethylene glycol and disodium ethylenediamine tetraacetate. The MPO calibrator can be shrink-resistant after being free-dried with the freeze-drying protection solution, can keep the shape before freeze-drying, does not stick to a bottle and has better toughness; freeze-dried powder cannot be stuck on a bottle plug; a freeze-dried product canbe completely dissolved, and the solution is clear and is free of blocks and foam; activity keeps unchanged basically before and after freeze-drying; stability of the MPO calibrator can be improved remarkably, transportation of a freeze-dried antigen is facilitated, retention time of the MPO calibrator is prolonged, and retention time of an MPO detection kit is prolonged.

The invention relates to a natural anti-bacterial shower gel, belonging to the technical field of preparation of daily chemical products. The natural anti-bacterial shower gel comprises the following components in parts by weight: 6-10 parts of Chinese herb extracts, 3-6 parts of tea tree oil, 15-30 parts of sodium laureth sulfate, 0.5-2 parts of cocoalkanoylamido propyl betaine, 0.5-5 parts of disodium ethylenediamine tetraacetate, 0.2-0.5 part of lactic acid, 0.2-1.5 parts of a thickening agent, 0.1-1 part of essence and the balance of deionized water. The natural anti-bacterial shower gel produced by using the formula has the function of effectively inhibiting the growth of microorganisms by adopting pure-natural plant essences, plays a role in deeply stelrizing and cleaning, and is fragrant in smell.

The invention discloses a cleaning agent. The cleaning agent comprises the following materials in percentage by weight: 1 to 6% of potassium silicate, 2 to 7% of tripoly-sodium silicate, 1 to 5% of sodium carbonate, 0.5 to 3% of potassium oleate, 0.5 to 3% of alkaryl polyether, 0.5 to 3% of sodium gluconate, 0.5 to 3% of tetrasodium ethylenediamine tetraacetate, 0.5 to 3% of an antifoaming agent, 0.5 to 3% of a corrosion inhibitor, and the balance of water. According to the mode mentioned above, the cleaning agent provided by the invention has the formula adopting components without smell and toxicity, the residual scaling powder and the residual rosin can be permanently decomposed and fallen, the residual greasy dirt can be removed and dissolved, and the foam can be effectively removed; and the cleaning agent has the corrosion protection effect, is remarkable in the cleaning effect and is durable, and is an environment-friendly cleaning agent with reasonable price and high cost performance.

The invention discloses a dual-ingredient degreasing agent for a battery aluminum shell. The dual-ingredient degreasing agent consists of an agent A (a main agent) and an agent B (an assistant), wherein the agent A is prepared from the following ingredients in percentage by weight: 15-20% of anionic surfactant, 30-45% of nonionic surfactant, 10-15% of solvent and the balance of water, and the agent B is prepared from the following ingredients in percentage by weight: 50-70% of inorganic base and 30-50% of chelating agent; the anionic surfactant is one or a mixture of more of the following substances: secondary alkyl sulphonate sodium and sodium dodecylbenzensulfonate; the nonionic surfactant is one or a mixture of more of the following substances: isomeric fatty alcohol-polyoxyethylene ether and fatty alcohol-polyoxyethylene ether, wherein the number of carbon atoms of the isomeric fatty alcohol-polyoxyethylene ether is 13, and the number of EO is 7; the solvent is 2-methyl-2,4-pentanediol; the inorganic base is sodium metasilicate; and the chelating agent is a mixture of tetrasodium ethylenediamine tetraacetate, sodium citrate and sodium gluconate. The dual-ingredient degreasing agent disclosed by the invention has the advantages of high degreasing speed, little corrosiveness, large unit degreasing area and good washing power.

The invention provides a softener of the scale that is difficult to be removed from a boiler used in a power station and a two-step washing scale removing method. The softener consists of the raw materials as follows based on the mass ratio: 0.5 to 7 percent of sodium ethylenediamine tetramethylene phosphonate, 0.6 to 8 percent of sodium polyacrylate, 10 to 40 percent of Na3PO4 question mark 12H2O, 8 to 35 percent of NaOH, 15 to 65 percent of Na2CO3, 2 to 10 percent of sodium humate and 0.5 to 5 percent of disodium ethylenediamine tetraacetate. The two-step scale removing method comprises the steps as follows: the softener for removing the scale is added during the operation of the boiler till the pH value is 10 to 12, the pH value of the water in the boiler is kept for 5 to 7 days under normal waste discharging situation to lead the scale of the boiler to fall off after being softened and dissolved; a corrosion inhibiting hydrochloride cleaning agent bought from market is used for cleaning at normal temperature according to a technique of Chemical Cleaning Rules of Boilers, thereby greatly shortening operation time with good cleaning effect. The scale cleaning time can be shortened to 2 to 3 days from the original 8 to 10 days. The softener for removing the scale has the advantages of innocuity, no harm and no corrosion, and can completely soften and dissolve the scale that is difficult to be removed. The problem that difficult scale of boilers of medium and low voltage power stations can not be cleaned in the prior art. The softener is also applicable to industrial boilers.

The invention relates to a concrete retarder, which comprises the following components: 15-20 parts of sucrose, 10-25 parts of glucose, 9-16 parts of phosphoric acid, 5-14 parts of disodium phosphate, 3-7 parts of trisodium phosphate, 6-9 parts of disodium hydrogen phosphate, 8-20 parts of sodium pyrophosphate, 9-15 parts of alkyl phosphate, 3-7 parts of disodium ethylenediamine tetraacetate, 2-9 parts of humic acid, 5-11 parts of sodium fluosilicate, 8-13 parts of methylene phosphate derivatives, 5-12 parts of calcium sodium ethylenediamine tetramethylidene phosphate, 4-9 parts of dimethylamine, 8-17 parts of formaldehyde, 6-14 parts of phosphorous acid, and 4-12 parts of a mixture of boric acid, sodium bicarbonate and tartaric acid according to the ratio of 3 to 5 to 2.