Basic Properties: Colorless or white crystalline, particle or powder,Without odour. Astringent taste. In the dry air weathering, 280 °C lost all gesso, 500 °C above decomposition. 1 g soluble in 0.6 ml water, 2.5 ml glycerin, not soluble in alcohol. To become acidic aqueous solution litmus, pH 4.5.
Can be used to prevent the disease of fruit tree nursery, is also a kind of supplement crops trace elements of the commonly used zinc fertilizer fertilizer, can do basal, hairy, fat, etc.
Also used for printing and dying mordant dyeing, wood and leather preservation agent.
Executive standard:
ITEM | INDEX | |||
Zinc Sulphate Monohydrate | Zinc Sulfate Heptahydrate | |||
INDEX | RESULT | INDEX | RESULT | |
Zn ≥% | 35.7 | 35.8 | 22.51 | 22.60 |
ZnSO4·H2O ≥% ZnSO4·7H2O ≥% | 98.0 | 98.2 | 99.0 | 99.2 |
Insolubles ≤% | 0.020 | 0.020 | 0.020 | 0.020 |
PH ( 50g /L ) ≥% | 4.0 | 4.0 | 3.0 | 3.0 |
Cl ≤% | 0.20 | 0.20 | 0.20 | 0.20 |
Pb ≤% | 0.002 | 0.002 | 0.001 | 0.001 |
Fe ≤% | 0.008 | 0.007 | 0.003 | 0.003 |
Mn ≤% | 0.01 | 0.01 | 0.005 | 0.005 |
Cd≤% | 0.002 | 0.002 | 0.001 | 0.001 |
Cu≤% | 0.001 | ------- | 0.002 | —— |
Packing: 50KG / pieces. Plastic woven bag lined with polyethylene plastic bag. (Which can be packaged according to customer requirements)
Delivery Date: within 15 days after confirmation
Zinc Sulphate Heptahydrate Microelement Fertilizer