Specification GB/T 25865-2010
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Items
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Powder
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Granular
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Appearance
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White free flowing Powder
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White free flowing Granular
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Zinc Sulpahte Content
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96.1% min
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96.1% min
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Zn%
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35% min
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35% min
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Pb /(mg/kg)
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10 max
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10 max
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Cd /(mg/kg)
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10 max
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10 max
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As /(mg/kg)
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5 max
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5 max
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Hg /(mg/kg)
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1 max
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1 max
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Powder size
Test screen pass rate W=250μm) %≥
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95% min
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Granular size
2-4MM%≥
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95% min
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In Stock Farming Industry:As nutritious supplementary to zinc elements in animal bodies and as raw materials of organic and inorganic chelate.
In agricultural application:As water soluble fertilizer and trace element fertilizer,in order to improve soil compaction, enhance plant nutrient absorption and to facilitate corp growth.
In industrial applicantion:As an important auxiliary material of viscose and vinylon fibers and is also used in priting and dyeing,electroplating, flotation concentration and treatment of circulated cooling water.