Product Notes

Muriate of Potash MOP also used as a water softener.

• 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
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)

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
 

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