Lime (Calcium Oxide) USP
Abstract
Calcium Oxide also known as quick lime or burnt lime is a white, caustic, alkaline, crystalline solid is an inexpensive and important commodity chemical. It is usually obtained by the thermal decomposition of limestone or seashells in a lime kiln.
Use/Application
Calcium Oxide is used as a source of heat in a food warming, self heating can. It is also used in the manufacture of cement, as an alkali in biodiesel production, in petroleum industry, in paper mills, as a plaster for flooring and in flue gas desulphurization.
Identity
Chemical Name: Calcium Oxide
Synonyms: Quick lime, Burnt lime
Mol Formula: CaO
Mol. Weight: 56.08 g/mol
CAS No.: 1305-78-8
General Specifications
| Test | Specification…USP |
| Appearance | It appears as a white to grey solid, odorless in the form of hard lumps |
| Solubility | Soluble in acids, glycerol, sugar solution. Practically insoluble in alcohol. Very slightly soluble in cold water, hot water. Insoluble in methanol, diethyl ether, n-octanol. |
| Loss on ignition | Maximum 10% |
| Insoluble substances | Maximum 1% |
| Carbonate | Passes test |
| Magnesium and alkali salts | Maximum 9mg |
| Organic volatile impurities | Passes test |
| Residual solvents | Passes test |
| Assay | Not less than 95% |
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.
