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Saving copy of the {{chembox}} taken from revid 463996410 of page Potassium_tartrate for the Chem/Drugbox validation project (updated: 'CASNo').
 
m →‎top: typo(s) fixed: on May 2020 → in May 2020
 
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{{more citations needed|date=July 2022}}
{{ambox | text = This page contains a copy of the infobox ({{tl|chembox}}) taken from revid [{{fullurl:Potassium_tartrate|oldid=463996410}} 463996410] of page [[Potassium_tartrate]] with values updated to verified values.}}
{{Chembox
{{Chembox
| Verifiedfields = changed
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| verifiedrevid = 400859250
| Watchedfields = changed
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|ImageFile=potassium tartrate.png
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| verifiedrevid = 464212661
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|ImageSize=200px
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|ImageFile=Potassium tartrate.svg
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|ImageSize=
|IUPACName=Dipotassium 2,3-dihydroxybutanedioate
|IUPACName=Dipotassium 2,3-dihydroxybutanedioate
|OtherNames=Dipotassium tartrate; Argol; E336
|OtherNames=Dipotassium tartrate; Argol; E336
|Section1={{Chembox Identifiers
|Section1={{Chembox Identifiers
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 2697916
| ChemSpiderID = 2697916
| InChI = 1/C4H6O6.2K/c5-1(3(7)8)2(6)4(9)10;;/h1-2,5-6H,(H,7,8)(H,9,10);;/q;2*+1/p-2
| InChI = 1/C4H6O6.2K/c5-1(3(7)8)2(6)4(9)10;;/h1-2,5-6H,(H,7,8)(H,9,10);;/q;2*+1/p-2
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| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = AVTYONGGKAJVTE-UHFFFAOYSA-L
| StdInChIKey = AVTYONGGKAJVTE-UHFFFAOYSA-L
| CASNo_Ref = {{cascite|correct|CAS}}
| CASNo = <!-- blanked - oldvalue: 921-53-9 -->
| CASNo=921-53-9
| CASOther = (L)
| CASNo_Comment = (L)
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| PubChem=6100505
| UNII_Ref = {{fdacite|correct|FDA}}
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| SMILES = [K+].[K+].O=C([O-])C(O)C(O)C([O-])=O
| UNII = O9WLL1ZL8S
| UNII_Comment = (L)
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| PubChem= 8984
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| SMILES = C(C(C(=O)[O-])O)(C(=O)[O-])O.[K+].[K+]
}}
}}
|Section2={{Chembox Properties
|Section2={{Chembox Properties
| Formula=C<sub>4</sub>H<sub>4</sub>K<sub>2</sub>O<sub>6</sub>
| Formula=C<sub>4</sub>H<sub>4</sub>K<sub>2</sub>O<sub>6</sub>
| MolarMass=226.27 g/mol
| MolarMass= 226.268 g/mol
| Appearance=
| Appearance= colorless, slightly opaque crystals
| Density=
| Density= 1.984 g/cm<sup>3</sup>
| MeltingPt=
| MeltingPt=
| BoilingPt=
| BoilingPt=
| Solubility=
| Solubility=
| SolubleOther = insoluble in [[ethanol|alcohol]]
| RefractIndex = 1.550
}}
}}
|Section3={{Chembox Hazards
|Section3={{Chembox Structure
| CrystalStruct = monoclinic
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| MainHazards=
}}
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| FlashPt=
|Section7={{Chembox Hazards
| Autoignition=
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| MainHazards=
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| FlashPt=
| AutoignitionPt=
}}
}}
}}
}}

'''Potassium tartrate''', '''dipotassium tartrate''' or '''argol''' has formula K<sub>2</sub>C<sub>4</sub>H<sub>4</sub>O<sub>6</sub>. It is the [[potassium]] [[salt (chemistry)|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.<ref>{{Cite web |last=PubChem |title=Potassium tartrate |url=https://pubchem.ncbi.nlm.nih.gov/compound/8984 |access-date=2022-06-18 |website=pubchem.ncbi.nlm.nih.gov |language=en}}</ref>

Potassium bitartrate, also referred to as potassium acid tartrate or cream of tartar,<ref>{{Cite web |last=PubChem |title=Potassium acid tartrate |url=https://pubchem.ncbi.nlm.nih.gov/compound/23681127 |access-date=2022-08-18 |website=pubchem.ncbi.nlm.nih.gov |language=en}}</ref> is the potassium acid salt of l-( + )-tartaric acid. It is obtained as a byproduct of wine manufacture during the fermentation process. Approved by the FDA as a direct food substance, potassium bitartrate is used as an additive, stabilizer, pH control agent, antimicrobial agent, processing aid, or thickener in various food products. Potassium bitartrate has a long history of medical use as a laxative administered as a rectal suppository and is an approved third-class OTC drug in Japan.

Potassium bitartrate was one of active ingredients in Phexxi, a non-hormonal contraceptive agent that was approved by the FDA in May 2020.<ref>{{Cite web |title=Phexxi (lactic acid, citric acid and potassium bitartrate) FDA Approval History |url=https://www.drugs.com/history/phexxi.html |access-date=2022-06-18 |website=Drugs.com |language=en}}</ref>

==Manufacturing==
Potassium tartrate is produced by the reaction of [[tartaric acid]] with potassium sodium tartrate ([[rochelle salt]]), and [[potassium sulfate]], followed by filtration, purification, precipitation and drying.

==Other compounds==
[[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.https://go.drugbank.com/drugs/DB11107

==References==
{{reflist}}

{{Potassium compounds}}

{{DEFAULTSORT:Potassium Tartrate}}
[[Category:Potassium compounds]]
[[Category:Tartrates]]
[[Category:Food acidity regulators]]
[[Category:Food antioxidants]]
[[Category:E-number additives]]
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