POTASSIUM SODIUM L(+)-TARTRATE
Prepared at the 7th JECFA (1963), published in NMRS 35 (1964) and in FNP 52 (1992). Metals and arsenic specifications revised at the 63rd JECFA (2004). An ADI of 0-30 mg/kg bw was established at the 17th JECFA (1973)
SYNONYMS Rochelle salt, Seignette salt, Potassium sodium dextro-tartrate; INS No. 337
DEFINITION
Chemical names Potassium sodium L-tartrate, potassium sodium (+)-tartrate, potassium sodium (+)-2,3-dihydroxybutanedioic acid
C.A.S. number 304-59-6
Chemical formula C4H4KNaO6 · 4H2O
Formula weight 282.23
Assay Not less than 99% after drying
DESCRIPTION Colourless crystals, or as a white, crystalline powder
FUNCTIONAL USESSequestrant, stabilizer in cheese products, minced meat, and sausage casings
