Potassium hydrogen L-tartrate, 98+%, Thermo Scientific Chemicals

Potassium hydrogen L-tartrate is used for stabilizing egg whites, whipped cream and for anti-caking and thickening. It is utilized for the prevention of crystallization of sugar syrups and reduces the discoloration of boiled vegetables. It is an active component in baking powder. It is used in household items in association with lemon juice or white vinegar to clean metals such as brass, aluminum and copper. Furthermore, it serves as a primary reference standard for a pH buffer.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Potassium hydrogen L-tartrate is used for stabilizing egg whites, whipped cream and for anti-caking and thickening. It is utilized for the prevention of crystallization of sugar syrups and reduces the discoloration of boiled vegetables. It is an active component in baking powder. It is used in household items in association with lemon juice or white vinegar to clean metals such as brass, aluminum and copper. Furthermore, it serves as a primary reference standard for a pH buffer.

Solubility
Soluble in water and dilute mineral acid. Insoluble in alcohol.

Notes
Incompatible with strong oxidizing agents.

Chemical Identifiers

CAS

868-14-4

Molecular Formula

C4H5KO6

Molecular Weight (g/mol)

188.18

MDL Number

MFCD00065392,MFCD00071626,MFCD00064206

InChI Key

KYKNRZGSIGMXFH-ZVGUSBNCSA-M

Synonym

potassium bitartrate, l +-potassium hydrogen tartrate, potassium 3-carboxy-2,3-dihydroxypropanoate, monopotassium tartrate, potassium acid tartrate, kaliumtartrat, potassium hydrogentartrate, 1-potassium hydrogentartrate, ksc657e1t, butanedioic acid, 2,3-dihydroxy-2r,3r-, potassium salt 1:1

IUPAC Name

2,3-dihydroxybutanedioic acid;potassium

SMILES

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

Melting Point

∼267°C (decomposition)

Density

1.954

Quantity

250 g

Beilstein

6119985

Merck Index

14,7615

Solubility Information

Soluble in water and dilute mineral acid. Insoluble in alcohol.

PubChem CID

24193652

Formula Weight

188.18

Percent Purity

≥98%

Chemical Name or Material

Potassium hydrogen L-tartrate

EINECSNumber

212-769-1

RTECSNumber

WW8223000

TSCA

Yes

Recommended Storage

Ambient temperatures

SDS

EINECSNumber

212-769-1

RTECSNumber

WW8223000

TSCA

Yes

Recommended Storage

Ambient temperatures

SDS

RUO – Research Use Only