348 results about "Iodide potassium" patented technology

The invention relates to a BiOI-graphene visible light catalyst and a preparation method thereof, belonging to the technical field of inorganic material synthesis and photocatalysis. BiOI and graphene are in the shape of a slice, and the graphene is 1.0%-3.0% by weight. The preparation method of the BiOI-graphene visible light catalyst comprises the following steps of: firstly ultrasonically dispersing graphite oxides into ethanol; then stirring, and adding a certain amount of sodium iodide or potassium iodide water solutions and bismuth nitrate glacial acetic acid solutions at the same time; transferring suspending liquid into a high-pressure reaction kettle with a polytetrafluoroethylene liner, and carrying out crystallization reaction at 120-150 DEG C for 6-12 hours; filtering, washing and drying obtain solid products so as to finally obtain the BiOI-graphene compound light catalyst. The preparation method has environment friendliness and simple process; and the prepared BiOI-graphene visible light catalyst has very high visible light catalytic activity and potential application value in a control technology decomposing organic pollutants by utilizing solar photocatalysis.

The invention relates to an aqueous culture method of anoectochilus. In the method, anoectochilus germchits are cleaned and sterilized, transplanted in a culture dish and cultured in a culture groove filled with an aqueous culture solution; each 10L of aqueous culture solution contains the following components: 650 to 800mg of calcium nitrate tetrahydrate, 50 to 60mg of ammonium nitrate, 280 to 350mg of potassium nitrate, 100 to 130mg of potassium dihydrogen phosphate, 350 to 380mg of magnesium sulfate, 0.5 to 0.8mg of potassium iodide, 2 to 5mg of manganese sulfate, 0.2 to 0.3mg of sodium molybdate, 0.1 to 0.2mg of cobalt chloride, 2 to 4mg of boric acid, 0.5 to 1mg of zinc sulfate, 0.3 to 0.5mg of copper sulfate and 3 to 5ml of iron salt solution, wherein the iron salt solution is prepared by mixing water, green vitriol and ethylenediamine tetraacetic acid disodium. The method has the advantages of lowering production cost, simplifying production process, improving the growth of anoectochilus plants and improving the survival rate of anoectochilus plants.

At least one of the following compounds is applied as a re-wet solution to media: potassium iodide, sodium iodide, sodium thiosulfate, potassium thiosulfate, and sodium thiocyanate. The addition of at least one of these compounds to the re-wet solution can improve light fastness on the order of eight to thirteen times or more on porous glossy media. These additives are particularly effective with water-soluble dyes, including dyes such as Reactive Black 31 (Pacified) (RB31), Direct Blue 199 (DB199), Magenta 377 (M377), and Direct Yellow 132 (DY132).

The polarizer of invention comprises a zinc-containing polyvinyl alcohol-based film which has been subjected at least to dyeing with an iodine solution containing iodine and potassium iodide, wherein the polarizer has a value of zinc content (% by weight)/potassium content (% by weight) of from 0.05 to 0.4, and a potassium content of from 0.2 to 12% by weight, and a value of zinc content (% by weight)/iodine content (% by weight) of from 0.012 to less than 0.05, and an iodine content of from 1 to 20% by weight. The polarizer can achieve high resistance to humidity.

The present invention discloses a defect-rich ultra-thin bismuth oxyiodide nano-sheet preparation method, which comprises: uniformly mixing a bismuth nitrate pentahydrate ethylene glycol solution and a potassium iodide ethylene glycol solution according to a volume ratio of 1:1; adding a small amount of an organic aldehyde reagent to make the organic aldehyde reagent concentration in the mixed solution be 0.2-1 g/L; transferring into to a hydrothermal reaction kettle, and carrying out a heat treatment for 12-24 h at a temperature of 150-180 DEG C; and after the hydrothermal reaction kettle is cooled to a room temperature, carrying out alcohol washing on the olive green product of the hydrothermal reaction kettle, carrying out water washing, and drying to obtain the product. According to the present invention, the viscosity of the ethylene glycol is high, the bismuth nitrate pentahydrate and the potassium iodide react in the high viscosity ethylene glycol system, and the grain growth is slow, such that the generation of the ultra-thin bismuth oxyiodide nano-sheets is easily achieved; and the organic aldehyde has the effects of the usual alcohol solvents and further normally has a certain reduction property, such that the [Bi2O2]<2+> unit on the surface is easily reduced through the organic aldehyde after the bismuth oxyiodide nano-sheets are subjected to ultra thinning so as to cause a lot of defects.

The invention relates to antisepsis and anti-inflammation medicaments, and particularly relates to high-content liquid povidone-iodine. The liquid povidone-iodine is prepared from the following raw materials in percentage by weight: 5.2-12.24 percent of iodine, 10-24 percent of polyvinylpyrrolidone, 2-4.8 percent of potassium iodide, 0.1-0.24 percent of potassium iodate, 15-36 percent of ethanol and the balance of water. The high-content liquid povidone-iodine is a reddish brown viscous liquid, is easily dissolved in water, has stable performance, strong sterilization efficacy and no irritation, is suitable for sterilization of operating parts and skin-mucosa or sterilization of aquatic water, can be used for preventing and treating bacteriosis of aquatic animals caused by vibrio, aeromonas hydrophila, edwardsiella tarda and the like and sterilizing the environment of livestock and poultry housings, plays a role in killing multiple bacteria, spores, viruses, fungi and the like, thus being a good iodine containing medical bactericide and epidemic prevention sanitizer.

The invention discloses scion root liquid of hackberry. Each liter of root liquid contains the following components in parts by weight: 1-3 parts of 6-benzyl amino adenine, 2-3 parts of ABT2 rooting powder, 15-20 parts of heteroauxin, 20-30 parts of naphthylacetic acid, 0.2-0.5 part of potassium iodide, 2-4 parts of zinc sulfate, 0.05-0.1 part of sodium molybdate, 10-20 parts of ammonium nitrate, 1-3 parts of magnesium sulfate, and 1-1.5 parts of vitamin D. A method for grafting and seeding the hackberry by the root liquid comprises the steps of: selecting scions and preparing the scions; selecting a stock and cutting the selected stock; connecting; and finally, carrying out seeding management. The root liquid disclosed by the invention is reasonable in formula, and the survival ratio of the grafted hackberry can be improved to over 90%. The grafting method disclosed by the invention is simple and convenient to operate, and easy to popularize.

The invention relates to a preparation method and application of a bismuth oxyiodide/titanium-based metal-organic framework composite and belongs to the technical field of preparation of composites. Firstly, a functionalized NH2-MIL-125(Ti) material is prepared; then the NH2-MIL-125(Ti) sample is put into a potassium iodide aqueous solution in proportion, stirring and ultrasonic treatment are carried out, and thus a solution A is formed; an ethylene glycol solution of bismuth nitrate pentahydrate serves as a solution B; the solution B is dropwise added into the solution A under a stirring condition and stirred evenly, then stirring reaction continues to be carried out in a water bath at 80 DEG C for 1-3 hours; and finally obtained products are filtered, washed and dried, and thus the BiOI/NH2-MIL-125(Ti) composite is obtained. The composite interface of the composite facilitates separation of electron-hole pairs, the transfer rate of charges is increased, and the recombination probability of the electron-hole pairs is reduced, so that current carriers have long service life, and accordingly the composite has excellent photocatalytic performance.

The invention provides quercetin derivatives. The chemical structural general formulas of the quercetin derivative is as shown in the specification; and the synthetic method of the quercetin derivative comprises the following steps: (1) taking a carbonate and the like as the acid-binding agents and potassium iodide as the catalyst, and reacting the quercetin with a halogen substitute of fatty acid ethyl ester; (2) separating and purifying by silica gelcolumn chromatography, and collecting the same components to obtain three yellow powdery compounds: quercetin ester derivatives; and (3) taking the synthesized derivatives as the reactants, respectively, adding NaOH aqueous solution and taking polyethylene glycol as the phase transfer catalyst; separating and purifying by silica gelcolumn chromatography, and collecting the same components to obtain quercetin carboxylic acid derivatives, respectively. The synthetic method of the series quercetin derivatives provided by the invention is simple and easy to operate; the yield of each product is high; and the series quercetin derivatives are remarkably improved in both water solubility and lipid solubility compared with the quercetin.

The invention discloses a fluorescence probe based on 1, 3, 4-oxadiazole derivative, and a synthetic method and applications thereof. Chemical formula of the fluorescence probe is represented in the invention. The synthetic method comprises following steps: N-[2-(5-phenyl-1, 3, 4-oxadiazole-2-yl)phenyl]-2-chloroacetamide, di-(pyridylmethylene)amine, N, N-diisopropylethylamine and potassium iodide are added into acetonitrile so as to obtain a mixture; the mixture is stirred, and is subjected to heating reflux under protection of nitrogen; solvent removing is realized via reduced pressure distillation, and obtained residues are subjected to column chromatography for separation so as to obtain the fluorescence probe N-[2-(5-phenyl-1, 3, 4-oxadiazole-2-yl)phenyl]-2-di(2-pyridylmethylene) acetamide. The raw materials are easily available; the synthetic method is simple; product separation and purification processes are easy; and the fluorescence probe possesses excellent water solubility, can be used for Zn<2+> monitoring analysis and tracer analysis in water environmental systems and biological cell systems, and possesses excellent sensitivity and relatively strong anti-interference capability on detection of Zn<2+>.

The invention discloses elementary substance mercury mineral adsorbent with natural ore such as medical stone as carriers, and a preparation method of the elementary substance mercury mineral adsorbent. The method mainly includes the steps of adding the carriers to a prepared mechanical modification solution to be soaked for about 4 fours, conducting filtering and drying, grinding on the carriers to the required granularity (60 meshes to 500 meshes), and obtaining the elementary substance mercury mineral adsorbent. Chemical modification agents are any one of cupric bromide, copper chloride, sodium bromide, potassium bromide, potassium iodide, elemental sulfur and the like. The carriers are medical stone which has good structural performance, and is porous, large in surface area, easy to modify and capable of effectively removing elemental mercury in coal-fired fuel gas without influencing commercial value of fly ash. The modified mineral adsorbent is abundant in reserve, low in price and easy to prepare, and is an environment-friendly mineral material.

The invention provides a synthesis technology for preparing oteracil potassium. With short reaction steps, the technology avoids the adoption of toxic and harmful bromine as an oxidant. The synthesis technology is characterized by comprising the following step of dissolving allantoin in a potassium hydroxide or potassium carbonate aqueous solution, wherein potassium iodide is used as a catalyst, and a pypocholoride aqueous solution is used as an oxidant. The method provided by the invention has the advantages of simplicity in operation, mild reaction conditions, high yield, high product purity and the like, and is suitable for industrial production of oteracil potassium.

The invention discloses a platinum (II) coordination complex and a preparing method and application thereof. The preparing method includes the steps that active natural products such as oleanolic acid and ursodesoxycholic acid and derivatives of the active natural products serve as ligand; potassium tetrachloroplatinate(II) and ammonia or (R,R)-cyclohexanediamine are subjected to coordination reaction under the condition of potassium iodide, then iodide ions are removed through silver nitrate under the light shielding condition, and the mixture and sodium salt of ursodesoxycholic acid or oleanolic acid or the derivatives of oleanolic acid are reacted to obtain the product. The platinum (II) coordination complex has the good in-vitro antitumor activity, and can be applied to preparing medicine for treating malignant tumor.

Belonging to the technical field of oilfield chemical products, the invention in particular relates to a novel high-temperature resistant acidification corrosion inhibitor. The corrosion inhibitor is prepared by: reacting acetophenone, trioxymethylene, cyclohexylamine, hydrochloric acid with oleic acid to generate a ketone aldehyde amine condensate, and then compounding the condensate with nonylphenol polyoxyethylene ether, ethanol (methanol), thiourea, propargyl alcohol and potassium iodide. The high-temperature resistant acidification corrosion inhibitor has the advantages of no pollution of three wastes, low cost, easily available raw materials, simple process, convenient use and the like, and can effectively resist high temperature (204DEG C).

The invention discloses a propynylamine high-temperature acidizing corrosion inhibitor and a preparation method thereof. The propynylamine high-temperature acidizing corrosion inhibitor is prepared by the following steps: by taking propargyl alcohol, organic amine and aldehyde as raw materials and a cuprous salt as a catalyst, carrying out mannich reaction within a relatively short time under promotion of ultrasonic waves to synthesize propynylamine compounds; and compounding the propynylamine compounds with potassium iodide and a surfactant. The corrosion inhibitor is a yellow or brown emulsion and is stable and uniform, can be well dispersed in an acidic liquid and can give play to a good corrosion inhibiting effect under the condition of a high temperature from 100-140 DEG C, so that the propynylamine high-temperature acidizing corrosion inhibitor is effectively prevented being corroded in the acidizing process. In addition, the corrosion inhibitor disclosed by the invention is prepared by using an ultrasonic wave synthetic method and has the characteristics of being low in synthetic temperature, short in time, high in reaction yield and the like.

The invention relates to a modified mesoporous silica adsorbent and a preparation method and application thereof. Under the catalysis of potassium carbonate and potassium iodide, aza-macrocyclic ligand is modified onto the surface of chlorine group functional mesoporous silica through nucleophilic substitution, and the adsorbent is prepared; palladium recycling and enrichment under different nitric acid concentrations are achieved through the adsorbent, and the selective recovery performance of palladium in highly-active effluent simulated feed liquid is evaluated. According to the modified mesoporous silica adsorbent, mesoporous nanomaterials are combined with the supermolecule recognition performance of the aza-macrocyclic ligand, the problems that selectivity is poor, operation is complex, the raw material cost is high and the stability is poor in the traditional treatment technology for palladium in highly-active effluent are solved, and the adsorbent has the advantages of being good in selectivity, large in adsorption capacity, high in adsorption speed and easy to recycle for palladium within the wide nitric acid concentration range, and has the great practical significance in the aspects of nuclear fuel reprocessing and hydrometallurgy.

The invention relates to a trace amount anion analysis method, and in particular relates to an ion chromatography- postcolumn derivation analytic system for effectively detecting trace amount bromate. In the anion analytical method for detecting trace amount bromate, the trace amount bromate is detected by an ion chromatography-postcolumn derivation-ultraviolet detection analytic system with very high sensitivity and selectivity. A home-made ion exchange column with high exchange capacity is used for separation, and potassium iodide is used as a postcolumn reaction reagent, the content of trace amount bromate is indirectly detected by the ultraviolet detection method with high sensitivity and good selectivity. Compared with the traditional ion chromatography-postcolumn derivation ultraviolet detection method, the technical scheme has the advantage of reducing the use of a suppresser and an electrical conductivity detector and can be used for detecting trace amount bromate with high sensibility and high selectivity.

The invention discloses a basic medium ZS for plant tissue culture and relates to the field of plant propagation. Every 1000 mL of the basic medium ZS contains 3075 mg of potassium nitrate, 578 mg ofammonium phosphate, 491 mg of calcium nitrate, 160 mg of ammonium chloride, 222 mg of magnesium nitrate, 396 mg of ammonium sulfate, 0.83 mg of potassium iodide, 6.2 mg of boric acid, 22.3 mg of manganese sulfate, 8.6 mg of zinc sulfate, 0.25 mg of sodium molybdate, 0.025 mg of copper sulfate, 0.025 mg of cobalt chloride, 100 mg of inositol, 0.1 mg of thiamine hydrochloride (VB1), 0.5 mg of pyridoxine hydrochloride (VB6), 0.5 mg of nicotinic acid, 37.3 mg of ethylenediaminetetraacetic acid disodium salt and 27.8 mg of ferrous sulfate. By means of the basic medium, the same tissue culture effect as an MS medium can be obtained without ammonium nitrate.

The invention provides a preparation method of a Pd-Rh nanocatalyst. The preparation method comprises the following steps: a palladium source solution, a rhodium source solution, an aqueous solution of potassium iodide and polyvinylpyrrolidone are mixed and dissolved in a solvent to obtain a mixture, and the mixture is heated, cooled, centrifuged and washed to obtain the Pd-Rh nanocatalyst, wherein the palladium source is disodium tetrachloropalladate, and the rhodium source is sodium hexachlororhodate (III). An element doping process is adopted to dope a palladium nanocrystal with a rhodium atom in order to construct the nanocatalyst, and a unique 3-nitrostyrene adsorption structure different from the Pd nanocrystal is obtained through the doping of the nanocatalyst with the rhodium atom,so hydrogenation of a nitro group is difficult, thereby the selectivity to carbon-carbon double bonds is improved. The Pd-Rh nanocatalyst of the invention has the advantages of good catalytic activity, high selectivity of double bond hydrogenation of 3-nitrostyrene, and stable catalytic performance.

The invention discloses a method for measuring trace elements such as arsenic and selenium in industrial electro-deposit copper according to the atomic fluorescence spectrometry. The method comprises the following steps: A, preparing a solution of an industrial electro-deposit copper fine sample; B, preparing a standard arsenic solution and a standard selenium solution; C, preparing a working curve solution with the standard arsenic solution and the standard selenium solution; D, measuring the atomic fluorescence strengths of arsenic and selenium in the working curve solution with an atomic fluorescence photometer, and drawing working curves by taking the mass concentrations of arsenic and selenium as X axes, and taking the fluorescence strengths of arsenic and selenium are Y axes; E, measuring the atomic fluorescence strengths of arsenic and selenium in the sample solution with the atomic fluorescence photometer, and finding out corresponding mass concentrations of arsenic and selenium on corresponding working curves with the atomic fluorescence strengths. As a nitric acid, hydrochloric acid, potassium iodide and thiocarbamide-ascorbic acid treating sample is adopted, not only can the impact of interfering ions such as Cu, Fe, Ag, Bi and Se and the combination of the interfering ions be effectively screened, but also the impact of the copper base body on arsenic and selenium measure can be eliminated.

The invention discloses a quantitative analysis method for measuring a rapid test strip on basis of an iodine-starch variable-color distance. The method comprises the steps: facilitating oxidation reduction between a target analyzed object or a secondary analyzed object in a sample and detection reagent such as potassium iodide, sodium iodide and the like, reducing iodine ions to an iodine elementary substance, wherein the concentration of the target analyzed object or the secondary analyzed object is in direct proportion to the concentration of the generated iodine elementary substance, and the concentration of the iodine elementary substance is in direct proportion to the length of a blue iodine-starch complex mark in a quantifying area; thus, the concentration of the analyzed object in the sample is in direct proportion to the length of the blue iodine-starch complex mark in the quantifying area, and by measuring the length of the blue iodine-starch complex track in the quantifying area by utilizing a straight ruler with scales, the analyzed object in the sample can be rapidly quantitatively detected. The method is simple and rapid to operate, low in cost, wide in applicable range and easy to realize mass popularization and application.

A method for detecting iodine content in phosphate ore relates to a detecting method, in particular to a method for detecting the iodine content in deposition phosphorite ore. The method includes the steps: a. placing 0.5-1.0g of a phosphate ore sample into a porcelain crucible, adding mixed fusing agent, mixing evenly, and covering a layer of mixed fusing agent; b. placing the porcelain crucible in a high temperature furnace, rising temperature to 700 to 800 DEG C, taking out, cooling, crushing clinker, pouring the clinker into a centrifugal tube, washing the crucible with hot water, diluting to 50mL, mixing evenly; c. rotating the centrifugal tube through a multi-pipe frame automatic balancing centrifugal machine to separate liquid and solid; d. sucking 5-10mL of supernatant liquor in the centrifugal tube, keeping pH in a range of 2.0-2.5, adding an oxidation agent, enabling potassium iodide to react with starch to generate blue compound, measuring absorbance at a corresponding wavelength position by a spectrophotometer, and calculating the iodine content by working curve method. The method is simple, fast, low in cost and good in reproducibility.