Potassium carbonate

Product name: Potassium carbonate

CAS number: 584-08-7

Molecular weight: 138.21

Density: 2.43g/mL at 25℃

Boiling point: 333.6℃ at 760mmHg

Molecular formula: CK₂O₃

Melting point: 891℃(lit)

Flash point: 111℃

Product introduction

Potassium carbonate, white crystalline powder. Density 2.428g/cm3. The melting point is 891℃, it decomposes at the boiling point, and the relative molecular weight is 138.21. Soluble in water, the aqueous solution is alkaline, insoluble in Ethanol, acetone and ether. It is highly hygroscopic and can absorb carbon dioxide and moisture when exposed to the air and turn 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.

Uses

Potassium carbonate can be used in glass, printing and dyeing, soap, enamel, preparation of potassium salts, decarbonylation of synthetic ammonia, and is also used in the color TV industry. It is mainly used as a leavening agent in food.

Mainly used for analytical reagents. Such as high purity analysis, emission spectrum analysis, etc. It can also be used as a flux for silicates and insoluble sulfates, a water absorbent for organic liquids, and in the electroplating, fertilizer, and photography industries.

Used in glass, printing and dyeing, soap, enamel, preparation of potassium salts, decarbonylation of synthetic ammonia, color TV industry, as leavening agent in food; as gas adsorbent, dry powder fire extinguishing agent, rubber antioxidant, etc.; used in exposed photosensitizers Material processing.

It is used in the manufacture of glass bulbs of picture tubes in the electronic industry, decarburization of fertilizer production, and potassium salt manufacturing. It is used as analytical reagents and fluxes, and is also used in the preparation of various potassium salts; used in analytical reagents, reference reagents, and molten silicates and Fluxing agent for insoluble sulfates.

Used as desiccant in chemical experiments. It has medium water absorption capacity and can form Potassium carbonate (K2CO3·2H2O) with two crystal waters, but it reacts slowly with water. Suitable for drying neutral organic compounds such as alcohols and esters, as well as general alkaline organic compounds such as amines and alkaloids. But it cannot be used as a desiccant for acids, phenols or other acidic substances.

It is an alkaline agent and dough improver, and can inhibit the sourness of noodles. It can be used in pasta products and should be used in appropriate amounts according to production needs. Used in the production of optical glass to improve glass transparency, strength and refractive index.