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243531

Sigma-Aldrich

Potassium L-tartrate monobasic

99%

Synonym(s):

KHT, L(+)-Tartaric acid monopotassium salt, Potassium bitartrate, Potassium hydrogen L-tartrate, Potassium hydrogen tartrate, Tartaric acid monopotassium salt

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About This Item

Linear Formula:
KO2CCH(OH)CH(OH)CO2H
CAS Number:
868-14-4
Molecular Weight:
188.18
Beilstein/REAXYS Number:
6119985
EC Number:
212-769-1
MDL number:
MFCD00065392
UNSPSC Code:
51113400
PubChem Substance ID:
24854509
NACRES:
NA.22

Quality Level

100

assay

99%

form

powder

optical activity

[α]20/D +10°, c = 2 in 10% HCl

density

1.954 g/mL at 25 °C (lit.)

SMILES string

[K+].O[C@H]([C@@H](O)C([O-])=O)C(O)=O

InChI

1S/C4H6O6.K/c5-1(3(7)8)2(6)4(9)10;/h1-2,5-6H,(H,7,8)(H,9,10);/q;+1/p-1/t1-,2-;/m1./s1

InChI key

KYKNRZGSIGMXFH-ZVGUSBNCSA-M

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General description

Potassium L-tartrate is found naturally in grapes. Its removal is necessary during wine making as it can precipitate, which is undesirable.

Application

Potassium L-tartrate monobasic may be used as a reductant during the synthesis of noble metal nanoparticles in the presence of linear polymers as protective agents.

wgk_germany

WGK 1

ppe

Eyeshields, Gloves, type N95 (US)

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Wine tartaric stabilization by electrodialysis and its assessment by the saturation temperature.
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