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.
resources of potassium sulfate are minerals abundant in the Stassfurt
are cocrystalisations of potassium sulfate and sulfates of magnesium
calcium and sodium.
sulfate can be synthesised by the decomposition of potassium chloride with
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.
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.
production is increasing in China.
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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