Magnesium sulphate heptahydrate

Description

Method

Typical

Guaranteed

Result

Unit

Appearance white crystals

Conforms

Conforms

Identification

USP

Passes test

Passed test

Assay. MgSO4.7H2O

99.5

99.7

%

MgSO4

48.70

report

48.72

%

pH,5% w/v solution

5.0-9.2

6.78

Loss on ignition

40.0-52.0

51.36

%

Loss on drying,2hrs@105 deg C

Max2.0

1.33

%

Chloride, Cl

Max 0.014

0.012

%

Iron, Fe, for nonparenteral use

Max0.001

0.0008

%

Arsenic, As

Max0.0002

0.0001

%

Heavy metaqls as Pb

Max0.001

0.001

%

Selenium

Max0.003

0.0006

%

Nicket

Max1

0.6

%

Organic Volatile Impurities

USP

Pass Test

Pass Test

Particle size

Between 1-4mm

Conforms to USP38

Conforms

Conforms