Potassium carbonate, white crystalline powder. Density: 2.428g/cm3. Melting point: 891 ℃, decomposition at boiling point, relative molecular weight: 138.21. Soluble in water, the aqueous solution is alkaline, insoluble in ethanol, acetone and ether. It has strong hygroscopicity. It can absorb carbon dioxide and moisture when exposed to the air and convert it into potassium bicarbonate. It should be sealed and packaged. Hydrates include monohydrate, dihydrate and trihydrate. Potassium carbonate aqueous solution is alkaline. Insoluble in ethanol and ether.

1.性状：白色结晶粉末

1. Properties: white crystalline powder

2.密度（g/mL,20ºC）：2．428

2. Density (g / ml, 20 º C): 2.428

3.相对蒸汽密度（g/mL,空气=1）：未确定

3. Relative vapor density (g / ml, air = 1): not determined

4.熔点（ºC）：89l℃

4. Melting point (º C): 89l ℃

CAS号:584-08-7

CAS No.: 584-08-7

分子式:K2CO3

Molecular formula: K2CO3

分子量:138.2066

Molecular weight: 138.2066

无机工业用于制造酒石酸钾钠、铝氟酸钾、硫氰酸钾、钛白粉。医药工业用于制造长效磺胺、黄体酮、可的松、知阿可尔、苯甲酸雌二醇等药。玻搪工业用于珐琅粉配制，以增强其流平性，加入玻璃中起助熔作用，并提高玻璃透明度和折光系数。染料工业用于制造阴丹土林、分散红3B、还原灰M等。印染工业用于还原染料的印染和冰染的拔白。橡胶工业用于制造4010防老剂。毛麻棉工业用于棉布煮炼和羊毛的脱脂。

Inorganic industry is used to manufacture potassium sodium tartrate, potassium aluminum fluoride, potassium thiocyanate and titanium dioxide. The pharmaceutical industry is used to manufacture long-acting sulfonamides, progesterone, cortisone, acar, estradiol benzoate and other drugs. Glass enamel industry is used for the preparation of enamel powder to enhance its leveling, add it to glass to play the role of melting aid, and improve the transparency and refractive index of glass. The dye industry is used to manufacture Yindan tulin, Disperse Red 3B, reduced ash m, etc. The printing and dyeing industry is used for the printing and dyeing of vat dyes and the whitening of ice dyeing. The rubber industry is used to manufacture 4010 antioxidant. Wool, linen and cotton industry is used for cotton cooking and wool degreasing.