Product Overview
Potassium Nitrate (KNO₃), commonly known as saltpeter, is a white crystalline inorganic oxidising salt with a molecular weight of 101.1 g/mol. It melts at 334°C and decomposes above 400°C — making it suitable for molten salt applications in the 150°C–400°C range. Its near-neutral pH of 6–6.5 and stable molten-state behaviour make it a primary constituent of heat treatment draw salt bath mixtures used for austempering and martempering of steel.
KNO₃ is directly relevant to S. N. Enterprise's existing heat treatment customer base — it is the base component in nitrate draw salt formulations that underpin the same processes served by our SN-140 and SN-220 tempering salts. Full manufacturer documentation (COA, MSDS, TDS) supplied with every order from our Shapar warehouse.
Technical Specifications
| Chemical Formula | KNO₃ |
| Molecular Weight | 101.1 g/mol |
| Appearance | White or colourless crystalline solid |
| Melting Point | 334°C |
| Decomposition | ~400°C |
| Odour | Odorless |
| pH (10% solution) | 6.0 – 6.5 |
| Solubility in water | Highly soluble (~316 g/L at 20°C) |
| Assay (purity) | ≥ 99% |
| Packaging | 25 kg / 50 kg HDPE sealed bags |
| Storage | Cool, dry — keep away from combustibles |
| Documentation | COA, MSDS, TDS with every order |