Magnesium Sulphate

CAS NO.：7487-88-9

EINECS NO.：231-298-2

Chemical formula：MgSO4

Molecular weight：120.3687

Melting point(℃)：1124℃

Density：2.66

Appearance：white powder, crystal

Molar mass(g/mol)：120.415

Specific water absorption：1.05（MgSO4.7H2O）

Solubility：soluble in water, sightly soluble in ethanol, glycerin and ether, insoluble in acetone.

Chemical property：Stability:Magnesium sulphate anhydrous is easy to absorb water and magnesium sulphate heptahydrate is easy to dehydration. Toxicity: toxic Toxicology data: Subcutaneous of mice: LD50 645 mg/kg(subcutaneous of mice); Abdominal cavity of mice :670-733mg/kg Irritant: this product may cause stomachache, vomiting, watery diarrhea, dyspnea, cyanosis, etc.

Classification：Magnesium sulphate heptahydrate（MgSO4.7H2O）、Magnesium sulphate monohydrate（MgSO4.H2O）

Magnesium sulphate heptahydrate mainly used for tanning, printing and dyeing, catalyst, paper-making, plastics ,etc.

Magnesium sulphate monohydratemainly used for fireproof materials, plastics and fertilizers,etc.

Package：Packed in PP woven bags with PE film liner. Net weight of each bag: 25KGS, 50KGS, 1000KGS.

Technical specification

ITEMS	Magnesium sulphate heptahydrate（MgSO4.7H2O）			Magnesium sulphate monohydrate（MgSO4.H2O）
	Special Grade	First Grade	Certified Grade	First Grade	Certified Grade
Magnesium Sulphate（MgSO4.7H2O）w/% ≥	99.5	99.0	98.0	-	-
Magnesium Sulphate（Mg）w/% ≥	-	-	-	16.5	15.7
Chloride（Cl）w/% ≤	0.10	0.20	0.30	0.50	1.50
Fe w/% ≤	0.002	0.003	0.005	0.01	0.02
Water Insoluble w/% ≤	0.02	0.05	0.10	0.10	-
Moisture w/% ≤	-	-	-	6.0	-

Feed grade magnesium sulphate（HG 2933-2000）

Appearance：Colorless crystal or colorless powder

ITEMS	Index
Magnesium Sulphate（MgSO4.7H2O）， %≥	99.0
Magnesium Sulphate（以Mg计） %≥	9.7
As， %≥	0.0002
Heavy Metal（Pb)， %≤	0.001
Chloride（Cl）， %≤	0.014
Clarify degrees test	clarification
Fineness（400μm），% ≥	95