|CAS number||, (L)|
|Jmol-3D images||Image 1|
|Molar mass||226.268 g/mol|
|Appearance||colorless, slightly opaque crystals|
|Solubility||insoluble in alcohol|
|Refractive index (nD)||1.550|
|Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)|
|(what is: / ?)|
Potassium tartrate, dipotassium tartrate or argol has formula K2C4H4O6. It is the potassium salt of tartaric acid. It is often confused with potassium bitartrate, also known as cream of tartar. As a food additive, it shares the E number E336 with potassium bitartrate.
Tartar emetic is produced when potassium tartrate is heated with antimony trioxide. Tartar emetic causes intense nausea, prostration and vomiting by irritating the gastrointestinal mucosa.