S P E C I F I C A T I O N S

Bismuth Subcarbonate USP 29

Synonyms:					Bismuth carbonate, basic; 
Bismuth oxycarbonate

CAS No.:					5892-10-4

Chemical Formula: 				(BiO)2CO3

Formula Weight:				509.97			

Description:					White to OFF-White, odorless and tasteless                  powder

Appearance in solution
(HNO3):					Clear, colorless, free of foreign matter

Identification:				Postive for Bismuth and carbonate

Assay:						97.6% - 100.7%

Loss on drying:		 		1.0% maximum

Chloride (Cl):				0.05% maximum
Alkalies & Alkaline Earths:		1.0% maximum
Nitrate (NO3):				0.4% maximum
Silver	(Ag):					0.0025% maximum
Copper (Cu):					0.005% maximum
Arsenic (As):					0.0005% maximum
Lead (Pb):					0.002% maximum

Effective Date: 02/02/09