Potassium bicarbonate

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Description

Colorless crystals or white powder. Potassium bicarbonate is used to add Carbon dioxide to water, as in soft drinks. It is also used in baking powders, fire extinguishers, and to adjust the PH of detergents.

Synonyms and Related Terms

potassium acid carbonate; baking soda

Chemical structure

Potassium bicarbonate.jpg


Risks

  • Fisher Scientific: MSDS

Physical and Chemical Properties

Soluble in water, pH = 8.2 (0.1 M solution). Insoluble in ethanol. Slightly alkaline.

Composition KHCO3
CAS 298-14-6
Melting Point 100-120 C (dec)
Density 2.17 g/ml
Molecular Weight mol. wt. = 100.1
Refractive Index 1.380, 1.482, 1.578

Resources and Citations

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 7770
  • CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: ref. index=1.380, 1.482, 1.578

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