POTASSIUM CHLORIDE CAS N°: 7447-40-7
POTASSIUM CHLORIDE CAS N°: 7447-40-7
POTASSIUM CHLORIDE CAS N°: 7447-40-7
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OECD SIDS <strong>POTASSIUM</strong> <strong>CHLORIDE</strong><br />
SIDS INITIAL ASSESSMENT REPORT<br />
1 CHEMICAL IDENTITY<br />
Name (OECD):<br />
Potassium chloride<br />
<strong>CAS</strong> No.: <strong>7447</strong>-<strong>40</strong>-7<br />
Molecular Formula:<br />
Cl-K<br />
Molecular Weight: 74.55<br />
Melting Point: 772 °C [1] [2]<br />
Boiling Point: 1<strong>40</strong>7 °C [2]<br />
Vapour pressure: 5.73 hPa at 906 °C [3]<br />
Partition Coefficient: -0.46 at 20 °C [4]<br />
Water solubility: 342 g/l water at 20 °C [5][6]<br />
Potassium chloride is a solid. Impurities are usually sodium chloride, magnesium chloride, bromide<br />
and alkaline earth sulphates, depending on the raw material and production process [6]. Potassium<br />
chloride is readily soluble in water to potassium and chloride ions, and has a low vapour pressure.<br />
UNEP PUBLICATIONS 7
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