30 results about "Mercury nitrate" patented technology

The invention belongs to the field of semiconductor nanomaterial preparation, in particular to a method for rapidly preparing spherical mercury sulfide nanoparticles, aiming at the existing problem of not being able to save energy and time, and synthesizing mercury sulfide nanoparticles with uniform shape and size and good dispersibility. Propose the following scheme, which includes the following steps: S1: Preparation of reaction mixture: at room temperature, add 0.5mmol of mercury nitrate, 0.5mmol of sulfur powder, and 0.15g of polyvinylpyrrolidone to 500g of ethylene glycol to prepare a mixture; S2: Synthesis of mercury sulfide nanoparticles: transfer the mixed solution into an oil bath filled with dimethyl silicone oil, and perform magnetic stirring to make the mixed solution react for 2 hours; S3: Separation of mercury sulfide nanoparticles: transfer the mixed solution from the bath Take it out from the pot, add an equal volume of ultrapure water and centrifuge for 15 minutes, remove the supernatant to retain the precipitate, and wash the precipitate with ultrapure water, and the precipitate will be spherical mercury sulfide nanoparticles after freeze-drying. The solvothermal synthesis system of the present invention can be used to prepare spherical nano-mercuric sulfide; the obtained spherical nano-mercuric sulfide particles have a single crystal form, good dispersibility, uniform shape and high stability; the method and process are simple, time-consuming, and the reaction temperature Low energy consumption, low cost of raw materials, easy to obtain, and conducive to industrial production.

The invention discloses a preparation method for mongolian medicine vermilion nanometer powder. The method is as follows: mercury nitrate and thioacetamide are used as raw materials for preparation of nanometer mercuric sulfide by using a wet process; a solution with a certain concentration is prepared from the raw materials; the raw materials are rapidly mixed under magnetic stirring, and the solution is uniformly heated until the solution boils so as to prepare nanometer mercuric sulfide powder. According to the invention, environmental pollution in traditional preparation processes for mongolian medicine vermilion is reduced, the process of preparation is more controllable, components are more specific, and quality of different batches of the nanometer powder is stable.

The invention belongs to the technical field of spent fuel reprocessing, and specifically relates to a system for dissolving aluminum matrices by virtue of mercury catalysis technology. The system isused for dissolving aluminum matrix rings of a neptunium target by virtue of a mercury catalysis dissolution reaction. The system comprises a strong-acid-resistant and high-temperature-resistant dissolving tank (1), wherein the dissolving tank (1) is provided with a feeding chute (18) and used for performing the mercury catalysis dissolution reaction; a temperature control device for adjusting thetemperature of the dissolving tank (1) is arranged on the periphery of the dissolving tank (1); the dissolving tank (1) is also provided with, in a running-through manner, a dripping pipe (22) for adding nitric acid, a charging pipe (20) for adding a mercuric nitrate solution, a bubbling pipe (23) for introducing nitrogen into a dissolving solution in the dissolving tank (1), and a discharging pipe (21) for discharging the dissolving solution in which the aluminum matrix rings are dissolved; and the top of the dissolving tank (1) is also provided with an exhaust outlet (25). The system for dissolving the aluminum matrices by virtue of the mercury catalysis technology can control and recover a large amount of H2 and NOx gases generated in the dissolution reaction, and can control the speedof the dissolution reaction so as to avoid a risk of explosion caused by over high concentration of H2.

The invention provides a human urine detection reagent for monohydroxyphenyl metabolites. The human urine detection reagent for the monohydroxyphenyl metabolites comprises mercury sulfate solution, mercury nitrate solution, nickel sulfate solution, silicotungstic acid solution, trichloroacetic acid solution and mercury ion (i) mesoporous silica. The concentration of the mercury sulfate solution is 0.7-3 mol / L; the concentration of the mercury nitrate solution is 0.1-0.6 mol / L; the concentration of the nickel sulfate solution is 0.01-0.05 mol / L; the concentration of the silicotungstic acid solution is 1.0-4.0 mmol / L; the concentration of the trichloroacetic acid solution is 0.6-5.0 mmol / L; the mass fraction of the mercury ion (i) mesoporous silica is 3-10%.