Chemical Name: CALCIUM GLUCONATE??????????RM Control No.:__________

Supplier: __________________________???????????????Qty. Received:____________

Lot No.: ___________________________??????????????Date Received:____________

Expiry Date:________________________

PARAMETERS USP 25	STANDARD	RESULTS	REMARKS
Description	White, crystalline, odourless, tasteless granules or powder. Its solutions are neutral to litmus.
Solubility	Sparingly (and slowly) soluble in water; freely soluble in boiling water; insoluble in alcohol.
Identification	A solution (1 in 50) responds to the test for calcium. To a solution of the calcium salt add 2 drops of methyl red TS, and neutralize with 6N ammonium hydroxide. Add 3 N hydrochloric acid, dropwise, until the solution is acid to the indicator. Upon the addition of ammonium oxalate TS, a white precipitate is formed. This precipitate is insoluble in 6N acetic acid but dissolves in hydrochloric acid
Assay USP 25 p.286	Weigh approx. 800mg and dissolve in 150ml of water containing 2mL of 3N HCl.?While stirring add 30mL of 0.05M EDTA VS from a 50mL buret, then add 15mL of 1N NaOH and 300 mg of hydroxy naphthol blue indicator, continue titration to a blue endpoint.?Each mL of 0.05M EDTA is equivalent to 21.52mg.

QC DISPOSITION :? [????? ]????? PASSED???????????[????? ]????? REJECT

Analyzed by:_____________________????? Reviewed by:___________________

Date:___________________________?????Date:_________________________

Revised October, 2002??????????????????Approved by:___________________