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Tartrate
|Section2= }} A tartrate is a salt or ester of the organic compound tartaric acid, a dicarboxylic acid. The formula of the tartrate dianion is O−OC-CH(OH)-CH(OH)-COO− or C4H4O62−.〔(【引用サイトリンク】url=http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=875&loc=ec_rcs )〕 The main forms of tartrates used commercially are pure crystalline tartartic acid used as an acidulant in non-alcoholic drinks and foods, cream of tartar used in baking, and Rochelle Salt, commonly used in electroplating solutions. ==As food additives== As food additives, tartrates are used as antioxidants, acidity regulators, and emulsifiers. Examples include *sodium tartrates (E335) * *monosodium tartrate * *sodium tartrate * *sodium ammonium tartrate the compound through which Louis Pasteur discovered chirality *potassium tartrates (E336) * *potassium bitartrate (monopotassium tartrate, cream of tartar) * *potassium tartrate *potassium sodium tartrate (E337) *calcium tartrate (E354, used as emulsifier) *stearyl tartrate (E483, used as emulsifier)
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