ZINC SULPHATE – ZnSO4.7H2O 98% Min ( Thương hiệu quả địa cầu đỏ UMX247 )

Công ty TNHH Ước Mơ Xanh

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Zinc Sulphate Heptahydrate Synonyms Zinc Sulphate Heptahydrate   Formula ZnSO4 7H2O ...
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Zinc Sulphate Heptahydrate

Synonyms Zinc Sulphate Heptahydrate  
Formula ZnSO4 7H2O  
CAS No. 7446-20-0  
EINECS No. 231-793-3  
Appearance White crystals, soluble in water, slightly soluble in alcohol  
     
Typical Analysis    
     
Assay    
As zinc (Zn) 22% Min  
As Zinc Sulphate Heptahydrate 98% Min  
Arsenic (As) 10ppm Max (Gutzeit Method)  
Lead (Pb) 30ppm Max (Atomic Absorption Spectrometric Method)  
Cadmium (Cd) 50ppm Max (Atomic Absorption Spectrometric Method)  
Iron (Fe) 300ppm Max (Atomic Absorption Spectrometric Method)  
Mercury (Hg) 2ppm Max (Atomic Absorption Spectrometric Method)  
Chlorides (Cl) 0.2% Max  
Water Insolubles 0.05% Max  
Packaging 25kg bags