Potassium Sulfate

Potassium sulfate (K2SO4) (also known as potash of sulfur) is a white crystalline salt soluble in water. It is non-flammable. The chemical is commonly used in fertilizers, providing both potassium and sulfur. Potassium sulfate is also a biproduct of the production of nitric acid.
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
Properties
General
Name Potassium sulfate
Chemical formula K2SO4
Appearance White solid
Physical
Formula weight 174.27 amu
Melting point 1342 K (1069 °C)
Boiling point 1962 K (1689 °C)
Density 2.66 ×103 kg/m3
Crystal structure orthorhombic
Solubility 11.1 g in 100g water at 20 °C
Thermochemistry
ΔfH0liquid ? kJ/mol
ΔfH0solid ? kJ/mol
S0solid ? J/mol·K
Safety
Ingestion Large amounts may cause gastrointestinal irritation. Very large amounts can cause potassium poisoning
Inhalation May act as an irritant.
Skin May act as a mild irritant.
Eyes Acts as an irritant
More info Hazardous Chemical Database
SI units were used where possible. Unless otherwise stated, standard conditions were used.

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