Potassium hydrogen L-tartrate, 98+%

Catalog No.	Quantity
AAA152810B	1000 g
AAA1528130	250 g
AAA152810I	5000 g

Catalog No. AAA152810B Supplier Thermo Scientific Chemicals Supplier No. A152810B

Description

CAS: 868-14-4 | C4H5KO6 | 188.18 g/mol

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.

Specifications

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: 1000 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

Safety and Handling

EINECSNumber	212-769-1
RTECSNumber	WW8223000
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only