Description
Synonyms: L(+)-Tartaric acid potassium Sodium salt, Rochelle salt, Seignette salt
Linear Formula: KOCOCH(OH)CH(OH)COONa · 4H2O
Application
Potassium sodium tartrate tetrahydrate is a double salt of tartaric acid that can be used to prevent the precipitation in alkaline medium. It can also be used as a reagent in the determination of nitrilase activity.
PROPERTIES
grade
ACS reagent
puriss. p.a.
Pack Size
500g; 1kg
Agency
USP/NF
reag. ISO
reag. Ph. Eur.
Assay
≥99.5% (perchloric acid titration)
impurities
≤0.001% total nitrogen (N)
pH
7.0-8.5 (20 °C, 5%)
anion traces
chloride (Cl–): ≤5 mg/kg
phosphate (PO43-): ≤10 mg/kg
sulfate (SO42-): ≤50 mg/kg
cation traces
Ca: ≤40 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
Pb: ≤2 mg/kg
Zn: ≤5 mg/kg
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