Potassium carbonate, Molecular Formula: K2CO3, molecular weight: 138.19, potassium carbonate is a white crystalline powder, density 2.428g/cm3. Melting point 89l ℃. Boiling point decomposition. Soluble in water, aqueous solution is alkaline, insoluble in ethanol, acetone and ether. Hygroscopicity strong, and exposed to the air can absorb carbon dioxide and water into potassium bicarbonate. Hydrate has a water thing, dihydrate, trihydrate material.
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