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Alfa Aesar™ Potassium sodium L-tartrate tetrahydrate, 99%

$55.72 - $643.46

Chemical Identifiers

Chemical Name or Material Potassium sodium L-tartrate tetrahydrate
CAS 6381-59-5
Molecular Formula C4H4KNaO6·4H2O
Formula Weight 282.23g/mol (210.29g/mol Anhydrous)
MDL Number MFCD00150989
Beilstein 6113568
Merck Index 14,7670
Synonym Rochelle Salt; Sodium potassium L-tartrate tetrahydrate
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Products
Catalog Number Mfr. No. Quantity Price Quantity    

AAA1016330

 
alfa aesar
A10163-30
250g Each for $55.72

AAA101630I

 
alfa aesar™
A10163-0I
5000g Each for $643.46
Description & Specifications

Specifications

Density 1.77
Quantity 250g
Chemical Name or Material Potassium sodium L-tartrate tetrahydrate
CAS 6381-59-5
Assay 99%
Assay Percent Range 99%
Molecular Formula C4H4KNaO6·4H2O
Formula Weight 282.23g/mol; 210.29g/mol (anhydrous)
MDL Number MFCD00150989
Beilstein 6113568
Merck Index 14,7670
Synonym Rochelle Salt
Solubility Information Soluble in water; Insoluble in alcohol
TSCA TSCA

Applications
Baking powder, medicine (cathartic), component of Fehling′s solution, silvering mirrors.Potassium sodium L-tartrate tetrahydrate is used in the process of silvering mirrors. It is active ingredient in the Fehiling’s solution and Nylander’s test involved in the determination of reducing sugars. It is utilized to break up emulsion in organic synthesis as well as a common precipitant in protein crystallography. As a Biuret reagent, it is used to measure the protein concentration. Furthermore, it is used as laxative and is also used in food industry.

Solubility
Soluble in water. Insoluble in alcohol

Notes
Loses water of crystallization at 140°. Unstable above 225°. Incompatible with strong oxidizing agents.