Zinc telluride is a gray or brownish-red powder that is a compound of zinc and telluride, with the chemical formula ZnTe. Ruby cubic crystals can be obtained by sublimation. Stable in dry air, it breaks down when exposed to water, releasing foul-smelling and toxic [...]
Zeolite is a porous aluminosilicate crystal with skeleton structure, which has high cation exchange ability. In recent years, the use of cation exchange capacity of zeolite to remove ammonia nitrogen from water has attracted the attention of many researchers. The surface of zeolite aluminosilicate [...]
Rhenium itself has no independent deposit, and is often dispersed in other non-ferrous ore bodies. It is mainly associated with molybdenite and mostly occurs in trace minerals such as molybdenum, copper, lead, zinc, platinum and niobium. Therefore, we should make full use of regional [...]
Cesium carbonate is an inorganic compound. White solid at room temperature and pressure. It is soluble in water and absorbs moisture quickly when exposed to air. Cesium carbonate aqueous solution is strongly alkaline and can react with acid to form the corresponding cesium salt [...]
(1) Preparation of Ti4O7: As a catalyst support, it needs to have a large specific surface area, and the difficulty lies in this. The specific surface area of Ti4O7 synthesized by single step method is very small. The specific surface area of multistep synthesis [...]
With the depletion of petroleum, coal and other traditional fossil energy and the worsening of environmental problems, the traditional energy structure system based on fossil energy is facing unprecedented crisis and challenge. Hydrogen, with its high energy density, excellent combustion performance, clean and pollution-free, [...]
Ammonium paratungstate is heated in a rotary furnace with wet dust collection, the vaporized crystal water is discharged first, and then a large amount of combined ammonia is lost, and finally tungsten trioxide (industrial) is formed.
Blue tungsten oxide has the characteristics of good activity, [...]
Cesium fluoaluminate flux moisture meter, also known as cesium fluoaluminate flux moisture meter. Its working principle is oven drying weight reduction method, by heating the sample moisture evaporation, and then calculate the sample weight difference before and after heating and the weight percentage of [...]
The invention relates to a method for preparing nanometer magnesium carbonate crystals, which can prepare nanometer magnesium carbonate crystals with high speed and high purity.
To realize the above purpose, the technical scheme of the invention is to design a method for preparing nanometer magnesium [...]
China is rich in rare earth resources and has the largest reserves in the world. Acetylacetone rare earth complexes have wide application prospects in new luminescent materials, extraction chemistry, displacement reagents, especially stabilizers for plastic processing.
In the past, the production process of lanthanum acetyl [...]