The incubation period of COVID-19 is generally 4-8 days, and the longest is 1 to 14days. People with underlying diseases, after being infected with the virus dueto low immunity, can invade the lungs and multiple organs of the body. Inaddition, there…
Water-based zinc stearate mainly uses zinc stearate special additives, sandpaper polishing paint, thermal paper sensitizer functional additives, rubber and water-based paint release agents, etc.…
How many types of genetic testing are there?…
Erbium oxide Er2O3 powder is a pink powder with the chemical formula Er2O3, mainly used as an additive for yttrium iron garnet and a control material for nuclear reactors.…
Iron disilicide is an inorganic silicon compound with a molecular formula of FeSi2 and a molecular weight of 119.975. It is a gray powder, odorless, tetragonal crystals. For hydrogen catalytic oxidation and methanation catalyst.…
Chromium carbide Cr3C2 powder is a high melting point material with good wear resistance, corrosion resistance and oxidation resistance in high temperature environment. It is made of nichrome tungsten carbide particles, produced by plasma spraying me…
Niobium carbide (NBC and Nb2C) is a very hard refractory ceramic material, widely used in refractory high temperature materials and cemented carbide additives.…
Silicon hexaboride, or hexaborosilicide, is a glossy black-grey powder that can be used as a variety of standard abrasives for grinding cemented carbide. It is also used as an antioxidant for engineering ceramic materials, sandblasting nozzles, manuf…
Titanium diboride (TiB2) is the most stable compound among boron and titanium, and is mainly used for the preparation of composite ceramic products.…
Recently, the Bulgarian Gas Company said that Bulgaria is negotiating with Gazprom on resuming natural gas supply, and there is a possibility that Russia will resume natural gas supply to Bulgaria.Since the outbreak of the conflict between Russia and…
Germany is heavily dependent on Russia for natural gas. The head of the Federal Network Agency, Germany's energy regulator, said recently that once supply from Russia stops completely, even if Germany will fill its underground natural gas storage fac…
As the European Union tries to reduce its dependence on Russian energy, the Russian president recently said Russia would try to shift its energy exports to the east, adding that there was no way for European countries to give up Russian gas immediate…
The Biden administration plans to ease sanctions on Venezuelan oil to allow more of the country's crude to reach Europe. The U.S. will allow European companies still operating in Venezuela to immediately transfer more oil to the continent, while all…
Chromium silicide, known as CrSi2 powder, is an inorganic silicide that is dark gray powder. For chromium silicide films, glass coatings, silicide targets, silicide sputtering targets and N-type semiconductors.…
Titanium carbide TiC powder is a crystalline solid with gray metallic luster, hard quality, second only to diamond in hardness, and weaker in magnetic properties. For the manufacture of cemented carbide, also used as electrodes and abrasives for arc…
Calcium silicide is used in the manufacture of special metal alloys, for example for phosphorus removal and as a deoxidizer. Calcium silicide is used in the manufacture of special metal alloys, for example for phosphorus removal and as a deoxidizer.…
Lithium sulfide, molecular formula: Li2S, lithium sulfide, molecular weight: 45.95. White to yellow crystals. With an anti-fluorite structure.…
Tungsten Oxide WO3 is also called tungsten trioxide. Tungsten trioxide is an inorganic substance, chemical formula WO3, is a light yellow crystalline powder. Insoluble in water, soluble in alkali, slightly soluble in acid.Used for making high melting…