Bismuth Subcarbonate BP
Abstract:
Bismuth subcarbonate (BiO)2CO3, sometimes written Bi2O2(CO3) is a chemical compound of bismuth containing both oxide and carbonate anions. Bismuth is in the +3 oxidation state. Bismuth subcarbonate occurs naturally as the mineral bismutite. Its structure consists of Bi-O layers and CO3 layers and is related to kettnerite, CaBi (CO3) OF. It is light-sensitive.
Uses/Applications:
In modern medicine, bismuth subcarbonate has been made into nanotube arrays that exhibit antibacterial properties.
General Specifications:
| Test | Specification |
| Characters | It occurs as a white or almost white powder |
| Identification
Test (A) Test (B) |
Gives reactions of carbonates Gives reactions of bismuth |
| Solubility | Practically insoluble in water and in ethanol (96 per cent). It dissolves with effervescence in mineral acids. |
| Appearance of solution | Solution S is not more opalescent than reference suspension II and is colorless |
| Chlorides | Not more than 500 ppm |
| Nitrates | Not more than 0.4% |
| Alkali and magnesium earth metals | Not more than 1.0% |
| Arsenic | Not more than 5 ppm |
| Copper | Not more than 50 ppm |
| Lead | Not more than 20 ppm |
| Silver | Not more than 25 ppm |
| Loss on drying | Not more than 1.0% |
| Assay | 80.0 % to 82.5 % of Bi (dried substance). |
Shelf life, Storage and Packing
It should be stored in a segregated area in a cool and ventilated place away from combustible materials. Keep in a tightly closed container, sealed until ready for use. It is packed in 25kg or 50kg HDPE bags or drums as required.
Other
GLP, cGMP (FDA) Approved, ISO 9001, ISO 14001, ISO 45001, ISO 17025, ISO 22000, FSSC 22000, FSSAI, Halal and Kosher certified.
We observe WHO Good manufacturing practice and Good laboratory practice.
