Potassium tartrate

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White crystals or granular powder. Potassium tartrate is formed when tartaric acid reacts with potassium carbonate.

Synonyms and Related Terms

potassium bitartrate; soluble tartar; vegetable salt; tartrate of potass

Other Properties

Soluble in water to form a slightly alkaline solution (pH = 7-8). Insoluble in ethanol.

Composition K2C4H4O6 - 1/2 H2O
CAS 921-53-9
Melting Point 200 (dec)
Density 1.98
Molecular Weight mol. wt. = 235.28

Hazards and Safety

Contact may cause irritation.

Mallinckrodt Baker: MSDS

Sources Checked for Data in Record

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Susan E. Schur, Conservation Terminology: A review of Past & Current Nomenclature of Materials, Technology and Conservation, Spring (p.34-39); Summer (p.35-38); Fall (p.25-36), 1985
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 7849

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