Aluminium sulphate
1. sizing agents in papermaking industry
2. flocculating agent for water purification
3. mordant dye
4. Rashness leather agent
5. wood preservative, etc.
Zinc is the forming element of many enzymes and hormone, and participates in metabolism of protein, carbohydrate and lipid as well. When lack of zinc, animals exhibit inappetence, slow growth, thick a…
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