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DRIED FERROUS SULPHATE - PHARMA GRADE
 
SPECIFICATIONS 
 

Sr. No.

Test

Standard

1.

DESCRIPTION

GREENISH WHITE TO BUFF COLOURED POWDER TASTES METALIC & ASTRINGENT

2.

SOLUBILITY

SLOWLY SOLUBLE IN FREASHLY BOILED & COOLED WATER, PRACTICALLY INSOLUBLE IN ALCOHAL.

3.

IDENTIFICATION

GIVE REACTION WITH CHARACTERISTC OF IRON & OF SULPHATE

4.

ARSENIC

NMT 3.0 ppm

5.

COPPER

NMT 50 ppm

6.

ZINC

NMT 500 ppm

7.

LEAD

NMT 50 ppm

8.

MANGANESE

0.1 % Maximum

9.

BASIC SULPHATE

2 gm dissolved slowly in mixture of 7.5 ml of freasly boiled & cooled water and 0.5 ml of 0.5 sulphuric acid forms a solution which is not more than faintly turbid.

10.
ASSAY
86% - 90% FeSO4
11.
FERROUS CONTENTS (IRON)
31% - 32% Minimum