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


Overview
Brand: Alfa Aesar™

Manufacturer Part Number: A10163.0B

UNSPSC: 12352106

Code: NEW

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


Quantity 1000g

Product Code. 11489442

Quantity Price
1 £ 60.21 / 1000g
Estimated Shipment date
from Supplier 11-05-2017
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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 282.23 (210.29 Anhydrous)
MDL Number MFCD00150989
Beilstein 6113568
Merck Index 14,7670
Synonym Rochelle Salt; Sodium potassium L-tartrate tetrahydrate

Specification

Chemical Name or Material Potassium sodium L-tartrate tetrahydrate
CAS 6381-59-5
TSCA TSCA
Assay 99%
Assay Percent Range 99%
Molecular Formula C4H4KNaO6·4H2O
Formula Weight 282.23 (210.29 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
Odor Odorless
Melting Point 70° to 80°C
pH 6.0 to 8.5
Quantity 1000g
Optical Rotation +21° (c=1 in water)

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.

Documentation

Technical documents