Potassium sulphate (CAS 7778-80-5)

Potassium sulphate (CAS 7778-80-5)

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Potassium sulphate (CAS 7778-80-5)

Potassium sulfate (US) or potassium sulphate (UK), also called sulphate of potash (SOP), arcanite, or archaically potash of sulfur, is the inorganic compound with formula K2SO4, a white water-soluble solid. It is commonly used in fertilizers, providing both potassium and sulfur.

The dominant use of potassium sulfate is as a fertilizer. K2SO4 does not contain chloride, which can be harmful to some crops. Potassium sulfate is preferred for these crops, which include tobacco and some fruits and vegetables. Crops that are less sensitive may still require potassium sulfate for optimal growth if the soil accumulates chloride from irrigation water.

The crude salt is also used occasionally in the manufacture of glass. Potassium sulfate is also used as a flash reducer in artillery propellant charges. It reduces muzzle flash, flareback and blast overpressure. It is sometimes used as an alternative blast media similar to soda in soda blasting as it is harder and similarly water-soluble. Potassium sulfate can also be used in pyrotechnics in combination with potassium nitrate to generate a purple flame.

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Description

Information
Industries: Fertilizers, Horticulture, Building chemistry
CAS number: 7778-80-5
WE number: 231-915-5
Chemical formula: K2SO4
Molar mass: 174,27 g/mol
Customs tariff code: 31043000

Other physical properties
Melting / freezing point: 1067°C
Boiling point / range: 1689°C
Relative density: 1230 kg/m3 (20°C)

Additional information

WeightN/A
Available amount

1000 kg, 25 kg bag