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


Overview
Brand: Alfa Aesar™

Manufacturer Part Number: A10163.0I

POTASSIUM SODIUM L-TARTRATE TETRAHYDRATE 99,5000G

UNSPSC: 12352106

Code: NEW

Additional Details:
Additional Details: CAS Number: 6381-59-5 Weight: 0.01000kg


Quantity 5000g

Product Code. 11409452

Quantity Price
1 £ 251.22 / 5000g
Estimated Shipment date
from Supplier 07-12-2016
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Description and Specification

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

Specification

Odor Odorless
Quantity 5000g
Melting Point 70° to 80°C
pH 6.0 to 8.5
Quantity 5000g
Optical Rotation +21° (c=1 in water)
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; Sodium potassium L-tartrate tetrahydrate
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.