362 results about "Iodide potassium" patented technology

The invention discloses a trace element solution, which comprises at least one metal selected from the group comprising selenium, copper, zinc, manganese and chromium and which comprises a concentration of the metal(s) of at least 60 mg / ml. The solution further comprises at least one compound selected from the group comprising iodine, potassium iodide, sodium iodide, iron, iron chloride, zinc oxide, manganese sulphate, sodium selenite, copper carbonate, sodium carbonate, anhydrous disodium EDTA and sodium hydroxide. The trace element solution is prepared by a method consisting essentially of the steps of preparing a MnCO3 mixture in a container; adding an EDTA / NaOH mixture to the container and subsequently adding at least one metal compound; and adding Na2SeO3 to the container to obtain the trace element solution. The method also comprises the step of adding CrCl3.6H2O to the trace element solution.

The present invention provides a mineral compound type licking brick for cattle and sheep and its preparation method. Every kg of licking brick contains 0.15-0.3g of ferrous sulfate, 0.15-0.3g of zinc sulfate, 0.1-0.2g of copper sulfate, 0.2-0.3g of manganese sulfate, 0.01-0.02g of sodium selenite, 0.05-0.3g of potassium iodide, 0.03-0.08g of cobaltous chloride, 0.1-0.3g of magnesium oxide, 0.02-0.03g of nano zinc oxide and copper sulfate mixture, 6-10g of chromium nicotinate, 30-150g of sodium sulfate, 40-100g of calcium hydrogen phosphate, 200-400g of edible salt, 200-400g of solidifying agent, 50-200g of carrier and 30-70g of treacle.

The invention relates to a BiOBr0.2I0.8 / graphene composite visible-light-induced photocatalyst and a preparation method thereof and belongs to the field of photocatalysis technology. BiOBr0.2I0.8 is microspheres composed of a large quantity of nanoflakes; the microspheres are 1.0 mum in diameter and are uniformly distributed on graphene flakes; and the mass percent of graphene is 5.0-15.0%. Firstly, graphite oxide is ultrasonically dispersed in absolute ethyl alcohol to obtain a suspension of graphene oxide; secondly, while stirring, adding the suspension of graphene oxide to a certain amount of ethylene glycol solution of sodium bromide, potassium iodide and bismuth nitrate; thirdly, the suspension of graphene oxide is transferred into a high pressure reactor with a polytetrafluoroethylene liner to be subjected to crystallization reaction for 12-16 h at 160-180 degrees; and finally, the obtained solid product is filtered, washed and dried to obtain the BiOBr0.2I0.8 / graphene composite visible-light-induced photocatalyst.

At least one of the following compounds is included on a surface layer of a print medium and in an inkjet ink formulation to be printed thereon: potassium iodide, sodium iodide, sodium thiosulfate, potassium thiosulfate, and sodium thiocyanate. The addition of at least one of these compounds to both the print medium and the inkjet ink 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 such dyes as Reactive Black 31 (Pacified) (RB31), Direct Blue 199 (DB199), Magenta 377 (M377), and Direct Yellow 132 (DY132).

The invention discloses a high-phosphorous chemical nickel-plating solution which comprises a cylinder opening solution and a supplement solution. The cylinder opening solution contains nickel sulfate, sodium hypophosphite, citric acid, lactic acid, sodium acetate, succinic acid, potassium iodate, potassium iodide, nitrilotriacetic acid, cerous sulfate, copper sulfate, benzotriazole, benzimidazole with the concentration being 2-10 mg / L, 5-25 mL / L of OP-10 with the concentration being 5-25 mL / L and the balance pure water. The nickel-plating solution has the advantages that cost is low, the excellent plating ability is achieved, the cylinder opening solution is stable, glossiness is achieved, the magnetism level requirement is met, and the service life reaches 11.0 MTO; during the service life, the average sedimentation rate is 12-14 [mu]m / h, the phosphorus content of a plating layer is 10%-14%, the time for neutral salt spraying is longer than or equal to 96 h (the thickness of the plating layer is 18-25 [mu]m), and the time for a purification resistant nitric-acid test is longer than or equal to 8 min (the thickness of the plating layer is 18-25 [mu]m); the magnetism level is lower than or equals to 200 gamma (specifically, 1 gamma is equal to 1 nT, and in general, remanence in the aerospace field takes gamma as a unit), the western country standard is met, and the magnetism is required to meet the NMB magnetism level; and the plating solution is free of lead and cadmium, conforms to the RoHS command and is an environment-friendly high-phosphorous chemical nickel-plating solution.

The invention belongs to a measuring method and particularly relates to a method for determining the content of copper in copper electrolyte. According to the technical scheme, the method comprises the following steps: adding the copper electrolyte into a flask; neutralizing the copper electrolyte by virtue of ammonium hydroxide until ferrum completely settles; adding ammonium bifluoride to mask ferrum, adding potassium iodide, and carrying out titration by virtue of a 0.003126g / mL sodium thiosulfate standard solution, thereby determining the content of copper. The method has the advantages of low cost, short determination time, time saving and labor saving properties and accurate and reliable analysis result and the like and is simple to operate.

The invention relates to a preparation method of S-glycidylphthalimide. The preparation method is characterized in that in a reaction of potassium phthalimide or phthalimide and (S) epichlorohydrin, a phase transfer catalyst and potassium iodide are used so that S-glycidylphthalimide synthesis is realized. Compared with the prior art, the preparation method greatly improves an S-glycidylphthalimide yield, has simple and safe processes, produces high-purity products, has a low cost and is suitable for industrial production of S-glycidylphthalimide.

The invention discloses a proliferation medium for Sierra cowberry blueberry tissue culture. 1L of the proliferation medium comprises modified WPM (woody plant medium), 0.5mg of NAA (Naphthalene Acetic Acid), 0.2mg of GA, 2-3mg of zeatin (ZT), 30g of saccharose, and 7g of agar, and has pH value of 5.2. 1L of the modified WPM contains macroelements, iron salts, microelements and organic substances, wherein the macroelements comprise 893mg of potassium nitrate, 119mg of ammonium sulfate, 370mg of magnesium sulfate, 278mg of calcium nitrate tetrahydrate, and 170mg of monopotassium phosphate; the ferric salts comprise 74.6mg of ethylene diamine tetraacetic acid, and 55.6mg of ferrous sulfate; the microelements comprise 22.3mg of manganese sulfate, 8.6mg of zinc sulfate, 0.025mg of copper sulfate, 0.25mg of sodium molybdate, 6.2mg of boric acid, 0.415mg of potassium iodide; and the organic substances comprise 0.5mg of niacin, 0.5mg of thiamine hydrochloride, 0.5mg of pyridoxine hydrochloride, 100mg of inositol and 2mg of glycine. The proliferation rate can reach more than 12 after the medium is used for 30 days.