Siarczan potasu (siarczan potasu) - 500g

Potassium Sulfate (K₂SO₄)

Other Names: Potassium sulphate, Dipotassium sulfate, Sulfate of potash
Chemical Formula: K₂SO₄
Molar Mass: 174.26 g/mol
CAS Number: 7778-80-5
Appearance: White crystalline powder or granules
Odor: Odorless

Physical and Chemical Properties

• Density: ~2.66 g/cm³

• Melting Point: 1069 °C

• Boiling Point: Decomposes before boiling

• Solubility in Water: 12 g/100 mL at 20 °C (moderately soluble)

• Solubility in Alcohol: Insoluble

• pH (5% solution): ~7 (neutral)

Applications

• Chemical Synthesis: Used as a source of potassium ions in inorganic reactions and precipitation processes

• Laboratory Use: Common salt in analytical and qualitative chemistry procedures

• Glass Industry: Used in manufacturing optical and specialty glass

• Metallurgy: Applied in fluxes for metal treatment and refining

• Industrial Processes: Sometimes used in cooling baths or molten salt mixtures

Safety Information

This chemical does not meet GHS hazard criteria for 97.8% (135 of 138) of all reports. Pictograms displayed are for 2.2% (3 of 138) of reports that indicate hazard statements.

Handling and Storage

• Handling: Avoid creating or inhaling dust. Use proper PPE in bulk handling

• Storage: Store in tightly closed containers in a dry, cool, and well-ventilated area. Keep away from acids and strong oxidizers

Environmental Considerations

Potassium sulfate is not classified as hazardous to the environment in typical use concentrations, but dust may irritate aquatic life in large quantities. Avoid uncontrolled discharge into water systems.