General
- Potassium
sulfate (K2SO4) (in British English potassium sulphate, also called
sulphate of potash is a flammable white crystalline salt which is
soluble in water.
- The mineral
form of potassium sulfate, namely arcanite, is relatively rare.
Process
- Natural
resources of potassium sulfate are minerals abundant in the Stassfurt
salt.
- These
are cocrystalisations of potassium sulfate and sulfates of magnesium
calcium and sodium.
- Potassium
sulfate can be synthesised by the decomposition of potassium chloride with
sodium sulfate.
Report
- Potassium
fertilization in Egyptian agriculture have become very important since the
completion of the High Dam because of the deposition of the suspended Nile
silt-rich in K bearing minerals in the upstream of the formed lake.
- World
annual production: 1.6 Mt, eq. 0.3 Mt S; Half is mined directly; and half
is produced by reaction of KCl with sulphuric acid.
- SOP
production is increasing in China.
Application
- The
principal use of potassium sulfate is as a fertilizer.
- The crude
salt is also used occasionally in the manufacture of glass.
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