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Magnesium Sulphate
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