Magnesium Sulphate

KIESERITE,7H2O MgO 16%,HEPTAHYDRATE,Anhydrous

Production information

PROPERTIES & USAGE
Properties		Usage
Chemical formula	MgSO4	Medical
Density	2.66 g/cm3 (anhydrous)	Other
	2.445 g/cm3 (monohydrate)	Debate
	1.68 g/cm3 (heptahydrate)	Agriculture
	1.512 g/cm3 (11-hydrate)	Pregnancy usage
Melting point	anhydrous decomposes at 1,124°C
	monohydrate decomposes at 200°C
	heptahydrate decomposes at 150°C
	undecahydrate decomposes at 2°C
Molar mass	120.366 g/mol (anhydrous)
	138.38 g/mol (monohydrate)
	174.41 g/mol (trihydrate)
	210.44 g/mol (pentahydrate)
	228.46 g/mol (hexahydrate)
	246.47 g/mol (heptahydrate)

SPECIFICATION
SPECIFICATION
Specification	Unit	:	Granular	Powder	HEPTAHYDRATE	Anhydrous
Appearance		:			White Crystal	White Powder
Main Content≥%		:			99	0.983
Mg≥%		:			9.7	0.192
S≥%		:			12.8
PH value		:			4.5-6.5	5.5
Chlorid(Cl)≤ppm		:			150	200ppm max
Iron(Fe) ≤ppm		:			15	20ppm max
Heavy metal(Pb) ≤ppm		:			8	10ppm max
Arsenide(As) ≤ppm		:			2	2ppm max
Water insoluble≤ppm		:			10	100ppm max
Particle size (mm)		:			0.1-1	0.1mm
Total MgO, %	min	:	25	27		0.302
Hot water Soluble MgO, %	min	:	19	24
Moisture content (50 deg C Vaccum Dry), %	max	:	3	2
Size 1-4.75 mm, %	min	:	95	95

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