Molecular formula: Zn3(C6H5O7)2·2H2O
Molecular weight: 610.37
Properties: white or yellowish amorphous powder, slightly soluble in water, insoluble in alcohol and ether, but dissolved in dilute acid, melting point: 134.2 ℃, decomposition at 150 ℃.
Uses: daily chemical stabilizer, used as zinc nutrient and food additive in medicine.
Product executive standard:
Item | Special level index | Food grade index |
[ Zn3(C6H5O7)2·2H2O] % ≥ | 98 | 98 |
Zn % - | - | 31-34 |
Loss on drying% ≤ | 3.0 | 3.0 |
Sulfate(SO4) % ≤ | 0.020 | 0.020 |
As% ≤ | 0.0005 | 0.0003 |
Pb % ≤ | 0.0010 | 0.0010 |
Cd % ≤ | - | 0.0005 |
pH value | 6.0-7.0 | 6.0-7.0 |
Packaging: lined with food grade plastic bags, covered with plastic woven bags, 20kg / bag.