L(+)-Potassium sodium tartrate tetrahydrate ≥99.0%, white crystalline powder ACS

Supplier: MP Biomedicals

Synonyms: Potassium sodium tartrate tetrahydrate, Potassium sodium (2R,3R)-2,3-dihydroxysuccinate tetrahydrate, Potassium sodium L(+)-tartrate tetrahydrate, Sodium potassium tartrate, (R,R)-(+)-Tartaric acid potassium sodium salt tetrahydrate, (R,R)-(+)-Potassium sodium tartrate tetrahydrate, Rochelle salt, L(+)-Tartaric acid potassium sodium salt tetrahydrate, (+)-Potassium sodium L-tartrate tetrahydrate

0215256380 0215256390
ICNA0215256380EA 102 SGD
ICNA0215256380 ICNA0215256390
L(+)-Potassium sodium tartrate tetrahydrate ≥99.0%, white crystalline powder ACS
L(+)-Potassium sodium tartrate tetrahydrate

Potassium sodium tartrate tetrahydrate has been used in organic synthesis to break up emulsions in aqueous workups.


  • Refractive Index: 22 ° (C=10, H₂O) (lit.)


The compound is an ingredient of Fehling’s solution and Biuret reagent and is used in detection of aldose and ketose functional group and measuring of protein concentrations. Potassium sodium tartrate tetrahydrate is a component in the technique to produce micrometer sized aerosol particles. The compound has been used as a precipitant in the crystallization and preliminary X-ray analysis of strictosidine synthase.


Caution: Research Use Only (RUO).

Formula: KOOC(CHOH)₂COONa·4H₂O
MW: 282,22 g/mol
Boiling Pt: 399,3 °C (760 mmHg)) (lit.)
Melting Pt: 70 °C (lit.)
Density: 1,05 g/mL (20 °C) (lit.)
Storage Temperature: Ambient
MDL Number: MFCD00150989
CAS Number: 6381-59-5
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Specification Test Results

Assay (non-aq titr) ≥99.0%
pH (5% aq soln) 6.0-8.5
Insoluble Matter ≤0.005%
Chloride ≤0.001%
Phosphate ≤0.002%
Sulfate ≤0.005%
Ammonium ≤0.002%
Calcium ≤0.005%
Heavy Metals ≤5ppm
Iron ≤0.001%

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