Chinese name: Zinc powder
English name: zinc powder
Chinese name 2: lead powder
English name 2: Zinc dust
Molecular formula: Zn
Molecular weight: 65.39
Basic physicochemical properties:
Color: dark grey; Molecular structure: spherical; Average gravity: 7.14g /cm33; Melting point: 419â??; Boiling point: 907â??.
Solubility: insoluble in water, soluble in acid and alkali, ammonia;
Stability: has a strong reducibility, and acid and base action to release hydrogen, easy to burn, combustion;
Stable in dry air, a large amount of zinc powder can be burned in humid air;
Burning in hot air produces a blue flame and produces zinc oxide.
Flying in the air, the encounter of Mars can cause combustion, the allowable concentration in the air is 15mg/m3;
It is easily caked by moisture, forming white basic carbonate in moist air and coating the surface;
The reaction with sulfuric acid and nitric acid is slow, and the reaction is accelerated when there is a small amount of other metals such as copper, tin and lead.
ã?? Main uses of metal zinc powder ã??
Huiyuan brand metal zinc powder is widely used in medical intermediates, electronic materials, military materials, zinc salt chemical industry, anticorrosive coatings, nonferrous and rare metal smelting and other industries.
