Potassium Chloride
CAS 7447-40-7
| Product name | Potassium Chloride |
|---|---|
| Synonyms | KCl, muriate of potash, MOP, potassium chloride powder, potash fertiliser |
| C.A.S. number | 7447-40-7 |
| Molecular formula | KCl |
| Molecular weight | 74.55 g/mol |
| Grade supplied against | MOP 60% K2O min (FCO) / technical |
| Appearance | Odourless crystalline solid or granules with a strong saline taste. Chemically pure material is white to colourless; MOP / technical fertiliser grade is commonly off-white, pink or red (Nutrien Muriate of Potash SDS lists colour as off-white, pink or red). Hygroscopic. |
| Product group | Industrial Salts & Inorganics |
| HSN code | 3104 20 00 |
| Country of origin | As stated on the producer’s documents for the lot supplied; confirmed at offer stage |
| Packing | 50 kg bag · 1 MT jumbo |
| Storage | Store in a dry location. Keep containers tightly closed and sealed - the product absorbs moisture on long-term storage and will cake. Keep away from moisture ingress and from metals it may corrode. No special fire precautions required (non-combustible). |
| S. No. | Test parameter | Specification | Method |
|---|---|---|---|
| 1 | Description | Odourless crystalline solid or granules with a strong saline taste. Chemically pure material is white to colourless; MOP / technical fertiliser grade is commonly off-white, pink or red (Nutrien Muriate of Potash SDS lists colour as off-white, pink or red). Hygroscopic. | Visual |
| 2 | Identification | Conforms to the substance supplied | Instrumental or chemical test, per method agreed |
| 3 | Assay / grade | MOP 60% K2O min (FCO) / technical | Titrimetry or instrumental, per method agreed |
| 4 | Physical state | Solid (crystalline) | Visual |
| 5 | Solubility in water | Freely soluble. 347-355 g/L at ambient temperature (Nutrien SDS); 35.5 g/100 g water at 25 C (CRC via PubChem). | Per the test method agreed |
| 6 | pH | 7 to 9 in a 10 % w/w aqueous solution (Nutrien SDS). PubChem records 'pH about 7' without stating a concentration. Essentially neutral. | Potentiometry on an aqueous suspension |
| 7 | Relative density | 1.988 g/cm3 (true density, 25 C, CRC via PubChem; ICSC 1.98 g/cm3). Bulk density of MOP granules 993-1201 kg/m3 (62-75 lb/ft3, Nutrien SDS). | Pyknometry or gas displacement |
| 8 | Melting / freezing point | 770 C (Nutrien SDS 770 C / 1418 F; ILO ICSC 1450 gives 770-773 C; CRC via PubChem 771 C) | Thermal analysis |
| 9 | Boiling point | 1420 C (Nutrien SDS). PubChem/CRC records it as subliming at 1500 C rather than boiling. | Distillation range |
| 10 | Flash point | Not flammable | Not applicable — the substance is not combustible |
| 11 | Additional parameters | To the specification agreed before order | As agreed |
Not regulated · Class Not regulated · Packing group Not regulated
Proper shipping name: Not regulated. The Nutrien Muriate of Potash SDS states 'Not regulated' for UN number and for US DOT, ADR/TDG, IMDG and IATA. ILO ICSC 1450 gives no UN transport entry. Potassium chloride is not a dangerous good for transport.
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