Molecular formula： MgSO4; MgSO4·H2O; MgSO4·7H2O
Molecular weight： 120.37; 138; 246.47
CAS No.： 7487-88-9; 14168-73-1; 10034-99-8
Property：White powder or crystal, soluble in water easily, bitter taste.
Usage：
1. Can be directly used as base fertilizer, fertilizer and foliar fertilizer.
2. Can be used alone, can also be mixed with.
3. Both in the traditional agriculture, but also in the high added value application of precision farming, flowers, and the field of soilless cultivation in.
Packing：Net in 25KG plastic woven bag, 1150KG/1200KG jumbo bag.
Specification：
Anhydrous & Monohydrate:
|
|
Anhydrous |
Monohydrate |
|
Main content |
98% Min |
99% Min |
|
MgSO4 |
- |
86% Min |
|
Ferrous |
0.0015% Max |
0.0015% Max |
|
Chloride |
0.015% Max |
0.015% Max |
|
PH value (5% solution) |
5.0-9.2 |
- |
|
Arsenic (As) |
0.0004% Max |
0.0004% Max |
|
Heavy metal (as Pb) |
0.001% Max |
0.001% Max |
Heptahydrate:
|
MgSO4·7H2O |
99.5% Min |
98% Min |
96% Min |
|
Mg |
9.8% Min |
9.5% Min |
9.27% Min |
|
S |
12.87% Min |
12.70% Min |
12.36% Min |
|
Chloride |
0.3% Max |
||
|
Iron (Fe) |
0.005% Max |
||
|
Heavy metal (Pb) |
0.001% Max |
||
|
Arsenic (As) |
0.0005% Max |
||
|
Insoluble matter in water |
0.1% Max
|
||
|
PH value |
4-6 |
||
|
Particle size (mm) |
0.1-1, 1-3, 2-4, 4-6 |
||
Magnesium Sulphate Kieserite:
|
Item |
Powder |
Granular |
|
Total MgO |
27% Min |
25% Min |
|
Water soluble MgO |
23% Min |
21% Min |
|
S |
20% Min |
16% Min |
|
Moisture |
2% Max |
5% Max |
|
Granular size |
--- |
2-4mm
|