Although hydrogen fuel is a promising alternative to fossil fuels, the catalyst it relies on for power generation is mainly composed of rare and expensive metal platinum, which limits the wide commercialization of hydrogen fuel.…
According to the different molecular structure, it can be divided into four generations of polycarboxylate series superplasticizer, the first generation is acrylic acid copolymer, the second generation is propylene ether type, the third generation is…
Tin disulfide is an inorganic compound with a chemical formula of SnS2. It is a yellow hexagonal flake with a CdI2 crystal structure. It is hardly soluble in water.…
In terms of action mechanism, the molecular structure of polycarboxylate superplasticizer is comb type, and the polar anion…
First of all, pay attention to the storage environment of polycarboxylate superplasticizer, try to store polycarboxylate superplasticizer in a cool, ventilated, no direct sunlight place.…
The COVID-19 pandemic has wreaked havoc on the youth Labour market, the ILO said. The ILO's just-released Global Employment Trends 2022 report found that the job prospects of young people aged 15 to 24 lag behind other age groups.…
Molybdenum disulfide has the chemical formula MoS2 and is used as a dry lubricant in greases, dispersions, friction materials and bond coatings.…
Molybdenum disulfide is the main component of molybdenite, which is a black solid powder with metallic luster and is an important solid lubricant.…
The chemical formula of chromium diboride is CrB2, which is a crystal with high hardness and melting point, and is chemically stable. Concentrated nitric acid is insoluble and can be directly mixed with elements or made from active metal reduction ox…
Silicon nitride is known as Si3N4 powder, it's a super-hard substance, which has lubricity itself, and is resistant to wear and oxidation at high temperatures.…
Silicon carbide(SiC)is a lightweight ceramic material with high strength properties comparable to diamond.The microscopic shape of silicon carbide powder is hexagonal crystals.…
The chemical formula TiC has a molecular weight of 59.89.Grey powder,usually used for making cemented carbide,also used as electrode and abrasive of arc lamp.…
Iron oxide Fe3O4 powder, commonly known as black iron oxide, magnetite and black iron oxide, is used in many different fields, it is commonly used as a pigment and polish, and in the manufacture of audio cassettes and telecommunications equipment.…
Hafnium boride, gray with metallic luster crystals. The melting point is 3250 degrees Celsius, the conductivity is large, and the chemical properties are stable.…
Vanadium nitride is known as VN powder, it is an important vanadium alloy additive, and vanadium nitride is used in lithium electronic batteries and energy storage materials.…
Cuprous oxide is a bright red powder that is almost insoluble in water.It is decomposed into divalent copper and copper in acid solutions,and gradually oxidized into black copper oxide in humid air.…
Copper oxide,chemical formula CuO. It is a black oxide of copper,slightly amphoteric and slightly hygroscopic.The relative molecular mass is 79.545,the density is 6.3～6.9 g/cm3,and the melting point is 1026℃.…
Silicon nitride ceramic materials have excellent properties such as high thermal stability, strong oxidation resistance, and high dimensional accuracy.…