Click to enlarge
Gray and turquoise single monoclinic system crystalline powder or granule. Inodorous, taste salty. Easily airslake in dry air, it is easy to oxidize to brown yellow alkalescence ferric sulphate. Soluble in water, insoluble in ethanol.
|
QUALITY INDEX |
GB29211-2012 |
||
|
Assay≥% |
FeSo4.7H2O |
FeSo4 |
|
|
|
99.5-104.5 |
86.0-89.0 |
|
|
Arsenic (As)≤% |
0.0003 |
||
|
Insoluble in Acid ≤% |
1.0 |
||
|
(Pb)≤% |
----- |
0.05 |
|
|
Hg≤% |
0.0001 |
||
Uses:
It is used as nutrition supplement, fruit and vegetable chromogenic reagent.
Storage & Transportation:
It should be stored in a dry and ventilative warehouse, kept away form water and moisture during transport, unloaded with care so as to avoid damage to bags. Furthermore, it should be stored separately from poisonous substances.