Industrial zinc sulfate
Zinc sulfate colorless or white crystalline granules or powder. Odorless. Astringent taste. Weathering in dry air, 280 ° C loss of all water of crystallization, and decomposition above 500 ℃. 1g dissolved in 0.6ml water, 2.5ml glycerol, insoluble in ethanol. Acidic aqueous solution to litmus, pH about 4.5. Containing one molecule of water of crystallization less likely to agglomerate. The relative density of 1.97. 100 ° C melting point. Minimum lethal dose (rat, oral) 2200mg/kg. Irritation. Used in the manufacture of lithopone, and used as a mordant, astringent, and wood preservatives.
Chemical properties of Industrial zinc sulfate
Pure zinc sulfate in the air long storage, the same yellow, placed in the lost water in dry air from the white powder. There are a variety of hydrates: the stability of the hydrate phase equilibrium with the water in the range of 0-39 ℃ zinc sulfate heptahydrate zinc sulphate,39-60 ° C for 6 zinc sulfate monohydrate 60-100 ° C compared with a water. A variety of hydrate completely lose water of crystallization when heated to 280 ° C, 680 ° C decomposition of zinc sulfate oxygen, further decomposition above 750 ℃, and finally decomposed into zinc oxide and sulfur trioxide at about 930 ℃. ZnSO4 · 7H2O MSO4 · 7H2O (M = Mg and Fe, Mn, Co, Ni) within a certain range the formation of mixed crystals. React with bases to generate the precipitation of zinc hydroxide, barium sulfate precipitation with barium salt response generated.
Industrial use
Is the main raw material for manufacture of lithopone and zinc salts, can also be used as dyeing mordant, wood and leather preservative, but also the production of viscose fiber and vinylon fiber auxiliary materials. In addition, electroplating and electrolysis industry applications, can also be used to manufacture the cable.
Read more:Industrial zinc sulfate for sale
No comments:
Post a Comment