Potassium Nitrate USP
Abstract
Potassium Nitrate is the ionic salt of potassium ions and nitrate ions. It is used in fertilizers, rocket propellants and fireworks.
Use/Application
Potassium Nitrate is used as an oxidizer in black powder. It is also used as a food preservative, as a thickening agent in soups and stews, in fertilizers as a source of nitrogen and potassium, in toothpastes for sensitive teeth, as an electrolyte in salt bridge, as an active ingredient in condensed aerosol fire suppression systems and as a thermal storage medium in power generation systems.
Identity
Chemical Name: Potassium Nitrate
Mol. Formula: KNO3
Mol. Weight: 101.10 g/mol
CAS No.: 7757-79-1
General Specifications
| Test | Specification…USP |
| Appearance | It occurs as transparent, white crystals, hygroscopic. |
| Solubility | Freely soluble in water, very soluble in hot water, soluble in glycerin and practically insoluble in alcohol |
| Appearance of solution | The solution is clear and colorless |
| Chloride | Maximum 0.03% |
| Sulphate | Maximum 0.1% |
| Arsenic | Maximum 3ppm |
| Lead | Maximum 0.001% |
| Heavy metals | Maximum 0.002% |
| Iron | Maximum 0.001% |
| Sodium | Maximum 0.1% |
| Nitrite | Maximum 5 micro-gm per gm |
| Organic volatile impurities | Passes test |
| Residual solvents | Passes test |
| Assay | Not less than 99% and not more than 100.5% |
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.
