potassium carbonate

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Related to potassium carbonate: potassium bicarbonate

potassium carbonate,

chemical compound, K2CO3, white, crystalline, deliquescent substance that forms a strongly alkaline water solution. It is available commercially as a white, granular powder commonly called potash, or pearl ash. It was originally obtained from wood ashes or from the residue left in pots after certain plants, e.g., kelp, were burned in them. It is prepared commercially chiefly by electrolysis of potassium chloride to form potassium hydroxide, which is then carbonated (e.g., by adding carbon dioxide gas). It is used in the manufacture of soft soaps and glass, for washing wool, and in the production of other potassium compounds.

Potassium Carbonate


, potash, K2C03, a salt; colorless crystals. Density 2.3 g/cm3; melting point, 89.4°C. Highly hygroscopic; solubility, 113.5 g per 100 g H2O at 20°C (156 g at 100°C). The solution is alkaline.

Potash has been extracted from the ashes of wood and herbaceous plants since ancient times. It is produced commercially mainly from natural potassium salts and as a by-product of the conversion of nepheline to aluminum oxide. Potassium carbonate is used in the preparation of liquid soaps, hard and crystal glasses, dyes, and photographic materials. It is also used as apotassium fertilizer.

potassium carbonate

[pə′tas·ē·əm ′kär·bə‚nāt]
(inorganic chemistry)
K2CO3 White, water-soluble, deliquescent powder, melting at 891°C; insoluble in alcohol; used in brewing, ceramics, explosives, fertilizers, and as a chemical intermediate. Also known as potash; salt of tartar.
References in periodicals archive ?
For the first time potassium carbonate is employed as a pore-forming agent and from the results it is concluded that both potassium carbonate and sodium bicarbonate are better pore forming agents.
a) First stage of melting: In the first stage of melting, potassium carbonate in the oxide form (K2O) was gradually reduced while sodium carbonate in the form of (Na2O) is gradually reduced at the same rate.
The potassium carbonate actually showed to slow the growth of the crayfish, but overall the data was scattered and insignificant.
Potassium carbonate reduced the diffusive resistance and increased resistance to viscous flow of air through alfalfa leaflets (Tullberg and Angus, 1978).
2] can be a fed into caustic potash to produce potassium carbonate which may become a component of "brilliant" glass, such as optical glass, eyeglasses, or television tubes.
Vulcan Chemicals has begun operation of a new 25,000-tons-per-year potassium carbonate production plant at its Port Edwards, WI manufacturing facility.
On October 6, 1807, he passed an electric current through molten potassium carbonate and liberated a metal, which he called potassium.
AkzoNobel commercializes chlorine and hydrogen, while Evonik distributes the locally produced potassium hydroxide solution and processes parts of it into other products such as potassium carbonate, potassium bicarbonate and potassium formate at its Llsdorf site.
Stephen Cannon, 39, made an arsenal of bombs from fireworks and potassium carbonate at his home in Barbauchlaw Avenue, Armadale, West Lothian.
Evonik will take the new plant's potassium hydroxide solution for commercialization and processing at its own site in Lulsdorf, which is where it processes potassium hydroxide solution into various products, including potassium carbonate (potash).
4-Chloronitrobenzene (from Merck), anhydrous potassium carbonate (from Merck), hydrazine monohydrate (from Merck), and 10% palladium on activated carbon (Pd-C, from Merck) were used as received.

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