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Potassium Sulphate - Indonesia
- Origin
- : Indonesia
- CAS Number
- : 7778-80-5
- HS Code
- : 3104.30.00
Basic Info
- IUPAC Name
- : dipotassium sulfate
- Molecular Formula
- : K2SO4
- Molecular Weight (g/mol)
- : 174.2600
- Synonyms & Trade Names
- : Potassium sulphate; Arcanite; SOP; K2SO4
- Purity / Assay (%)
- : 99% min
- Grade / Quality Level
- : Technical Grade
- Physical Form
- : Solid
- Concentration
- : Pure substance
- Appearance / Color
- : White to off-white solid
- Odor
- : Odorless
- Melting Point (°C)
- : 1069.0000
- Boiling Point (°C)
- : 1689
- Density (g/cm³)
- : 2.6600
- Solubility in Water
- : Freely soluble (12g/100mL)
- UN Number
- : Not applicable
- H-Statements
- : None
- P-Statements
- : P260
- REACH Status
- : Registered
- Drug Precursor Status
- : Non-precursor
- Storage Class (GHS)
- : 13
- Storage Conditions
- : Cool, dry place
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Brief overview
Potassium sulfate (K2SO4) (in British English potassium sulphate, also called sulphate of potash, arcanite, or archaically known as potash of sulfur) is a non-flammable white crystalline salt which is soluble in water. The chemical is commonly used in fertilizers, providing both potassium and sulfur.
Manufacturing Process
The process for manufacturing potassium sulfate is similar to that used for the manufacture of sodium sulfate. Potassium sulfate can be synthesised by reaction of potassium chloride with sulfuric acid according to the Leblanc process. Potassium sulfate is produced according to the following reaction:
2 KCl + H2SO4 → 2 HCl + K2SO4
The Hargreaves process uses sulfur dioxide, oxygen and water and potassium chloride as the starting materials to produce potassium sulfate. Hydrochloric acid evaporates off. SO2 is produced through the burning of sulfur.