Chemical Formula: K₂SO₄
Physical Appearance: White crystalline powder or granules. Moderately soluble in water, insoluble in alcohol.
Applications: Source of potassium (K₂O ~50%) and sulfur (SO₃ ~45%), commonly used as fertilizer. Also used in glass production to enhance durability and clarity, and in the food industry for pH adjustment and as a nutrient additive (E515).