Sodium Carbonate IP

Product Description

FINISHED PRODUCT SPECIFICATION

QCD.F.033

Name of Product : SODIUM CARBONATE (Anhydrous)

Chemical Formula : Na2CO3 Effective Date : 30/11/2016

Molecular Weight : 105.99 g/mol Retest Date : After 1 Year

CAS No. : 497-19-8 Master Copy : Quality Control

Specification : Confirmed as IP

Product Code : FP024004

HSN Code : 28362090

Department : Quality Control Page No. : 01 of 01

NO. TEST SPECIFICATION

1. DESCRIPTION White or almost white, slightly granular powder, hygroscopic

2. SOLUBILITY Freely soluble in water, practically insoluble in ethanol (95%).

3. Identification

A) By Chemical A) The solution is strongly alkaline

B) The reaction A of

‘Carbonates’.

The reaction of ‘Sodium

salts ‘

B) A white precipitate is formed that dissolves on addition of an

excess of hydrochloric acid

A white precipitate is formed.

4. Appearance of solution The solution is clear and not more intensely coloured than

reference solution YS6

5. Alkali hydroxides and

bicarbonates

The solution does not become red after addition of

phenolphthalein. Boil the remainder of the filtrate for 2 min.

The solution remains clear.

6. Heavy metals Max.0.005%

7. Chloride Max.0.0125%

8. Iron Max.0.005%

9. Sulphate Max.0.025%

10. Loss on drying Not more than 1.0 % w/w at 300°

11. Assay (By Titrimetry) 99.5 % w/w to 100.5% w/w of Na2CO3 on dried basis.

Storage : Hygroscopic. Keep container tightly closed. Keep container in a cool, well ventilated area.