Auxiliary

Zinc sulfate heptahydrate is a white particle or powder with orthorhombic crystal. It is a common astringent. It will be weathered in dry air. When heated to 30 ℃, it loses one molecule of crystal water, six molecules of crystal water at 100 ℃, seven molecules of crystal water at 280 ℃, and decomposes into zinc oxide and sulfur trioxide at 767 ℃. It is soluble in water and slightly soluble in ethanol and glycerol. It is mainly used as raw materials for manufacturing zinc barium and other zinc salts, as well as important auxiliary raw materials for viscose fiber and vinylon fiber. It is also used as printing and dyeing mordant, wood and leather preservation agent, bone glue clarification and preservation agent, medical emetic and fungicide, and trace element fertilizer in agriculture.

As a water retention agent in the food industry, it is used in cans, fruit juice drinks, dairy products, meat products, cheese and beverages. In chemical, textile, printing and dyeing, papermaking, power generation and other industries, it is used as water softener and detergent, boiler scale inhibitor, water softener in paper dyeing, pH buffer of chemical Book adhesive for wax paper production, color fixing agent during printing and dyeing, mercerization enhancer of fabric, and anti embrittlement agent for thread making. Metallurgical industry is used for chemical degreasing and decontamination, and as an excellent accelerator in photographic development solution. Tooth cleanser and bottle detergent. A coagulant for rubber milk. Sugar juice purifier.

This product is used for bleaching cotton fabrics and organic fabrics. It is used as reducing agent in dyestuff, papermaking, tanning, chemical synthesis and other industries. The pharmaceutical industry is used to produce intermediates of analgin and aminopyrine. Food grade products are used as bleach, preservative and antioxidant.

It is a high efficient bleaching agent and oxidant. It is a new and efficient bleaching agent and oxidizing bactericide.

Copper sulfate, also known as blue alum, with chemical formula CuSO4, is white powder without water, blue powder with water, or light grayish green due to impure. It is a soluble copper salt. The common form of copper sulfate is its crystal. Copper sulfate tetrahydrate ([Cu (H2O) 4] SO4 · H2O, copper sulfate pentahydrate) is a blue solid. Its aqueous solution is blue due to hydrated copper ions, so anhydrous copper sulfate is often used to test the existence of water in the laboratory. In real production and life, copper sulfate is often used to refine refined copper, which can be mixed with hydrated lime to produce pesticide Bordeaux liquid. Copper sulfate is a heavy metal salt, toxic, and the lethal dose for adults is 0.9g/kg. If you eat by mistake, you should immediately eat or drink protein rich foods such as milk and egg white, or use EDTA calcium sodium salt to detoxify. White anhydrous copper sulfate powder is blue after dropping into water