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Names | |||
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Preferred IUPAC name
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Other names
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Identifiers | |||
3D model (JSmol)
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ChemSpider | |||
ECHA InfoCard | 100.011.609 | ||
E number | E336 (antioxidants, ...) | ||
PubChem CID
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UNII | |||
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Properties | |||
KC4H5O6 | |||
Molar mass | 188.177 | ||
Appearance | White crystalline powder | ||
Density | 1.05 g/cm3 (solid) | ||
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Solubility | Soluble in acid, alkali Insoluble in acetic acid, alcohol | ||
Refractive index (nD)
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1.511 | ||
Pharmacology | |||
A12BA03 (WHO) | |||
Hazards | |||
Lethal dose or concentration (LD, LC): | |||
LD50 (median dose)
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22 g/kg (oral, rat) | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Potassium bitartrate, also known as potassium hydrogen tartrate, with formula KC4H5O6, is a chemical compound with a number of uses.
Some of the uses of potassium bitartrate (cream of tartar) include as a mordant in textile dyeing, in the galvanic tinning of metals, as reducer of chromium trioxide in mordants for wool, in dusting powders for gloves, to make hard candies, in baking powders and baking mixes, as a metal processing agent (prevents oxidation), as an intermediate for other potassium tartrates, to remove sulfur dioxide from waste gases (in solution), as a medical cathartic, as a diuretic, and as a historic veterinary laxative and diuretic.[1]
It is a byproduct of winemaking. In cooking, it is known as cream of tartar. It is processed from the potassium acid salt of tartaric acid (a carboxylic acid). The resulting powder can be used in baking or as a cleaning solution (when mixed with an acidic solution such as lemon juice or white vinegar).