Potassium Chloride
Potassium Chloride is a high purity, dry crystalline inorganic/metal halide salt composed of potassium and chlolrine, KCl. It has a molar mass of 74.551 g/mol and occurs naturally as the mineral slyvite. Potassium chloride is often referred to as muriate of potash (MOP), particularly when used as a fertilizer.
Advantage :
• Widely used in the industry
• Largely benign salt; solutions are neutral pH
• Does not significantly impair performance of polymers such as viscosifiers and filtration controllers
Appearance White free flowing crystalline powder
Density 1.98 SG
Bulk Density 71 to 78 Ib/ ft³
Aqueous Solubility Up to 24%, 278.9 gL of solution at 68˚F (20˚C)
Purity 98.83%-99%
K20 62% and above
• Primarily used as a shale inhibitor as the potassium ion exchanges with calcium and sodium ions n the interlayer space in illites and smectites, converting them to more stable mica-type structures that do not hydrate and swell.
• Used to prepare brines for drill-in, completion, and workover fluids
| Other names | Sylvite common name Muriate of potash Potassium Chloride |
Identifiers | |
| CAS number | [7447-40-7] |
| RTECS number | TS8050000 |
| ChemSpiderID | 4707 |
Properties | |
| Molecular formula | KCl |
| Molar mass | 74.55 g/mol |
| Appearance | white crystalline solid |
| Density | 1.987 g/cm3 |
| Melting point | 775 °C |
| Boiling point | ca. 1500 °C |
| Solubilityin water | 28.1 g/100 ml (0 °C) 34.0 g/100 ml (20 °C) 56.7 g/100 ml (100 °C); |
Hazards | |
| MSDS | ICSC 1450 |
| EU Index | Not listed |
| Flash point | Non-flammable |
| LD50 | 2600 mg/kg (oral/rat), 142 mg/kg (intravenous/rat) |
The salt readily dissolves in water without leaving a residue
