Potassium Carbonate
Chemical formula: K2CO3
Relative molecular weight: 138.206
CAS NO: 584-08-7
Property: The appearance is colorless crystal or white particle, which is very soluble in water, and the solution is strongly alkaline. Insoluble in ethanol, acetone and ether. It is highly hygroscopic and can absorb carbon dioxide and water when exposed to the air, which can be converted into potassium bicarbonate. It can be obtained by reacting potassium hydroxide with carbon dioxide. It can also be obtained by co-heating potassium chloride with magnesium carbonate, water and carbon dioxide under pressure, or by soaking tung seed ash and plant ash.
Applications: Potassium Carbonate is mainly used for synthesis gas decarburization, electronic tube, glass, enamel, printing and dyeing, welding electrode, film development, inorganic salts and raw materials of the glass shell of the display tube. The impure potassium carbonate is commonly known as oxaline, tung alkali, or pearl ash, and is one of the early varieties of potassium fertilizer.
Potassium carbonate is one of the important basic inorganic chemical, pharmaceutical and light industrial raw materials. It is mainly used in the production of optical glass, welding electrode, electron tube, TV picture tube, light bulb, printing and dyeing, dye, ink, photographic medicine, styrofoam, polyester, explosive, electroplating, leather making, ceramics, building materials, crystal, potassium soap and medicine. Used as gas adsorbent, dry powder fire extinguishing agent, rubber antioxidant. It is also used to remove carbon dioxide from fertilizer syngas. It can also be used as potassium fertilizer. In inorganic industry, potassium carbonate is used to make potassium sodium tartrate, potassium aluminum fluoride, potassium thiocyanate and titanium dioxide. In the pharmaceutical industry for the manufacture of long-acting sulfanilamide, progesterone, cortisone, zhiakol, estradiol benzoate and other drugs. Glass enameling industry is used in the preparation of enamel powder to enhance its leveling property, add it into glass to play a role of melting aid, and improve the transparency and refractive index of glass. The dyestuff industry is used to make Yindan tulin, Disperse Red 3B, reducing grey m, etc. Printing and dyeing industry is used for vat dyeing and ice dyeing. The rubber industry is used to make 4010 antioxidant. It is used in cotton scouring and wool degreasing.
IUPAC
dipotassium;carbonate
SMILES
C(=O)([O-])[O-].[K+].[K+]
Qinghai, China
