POTASSIUM SULFATE
Prepared at the 29th JECFA (1985), published in FNP 34 (1986) and in FNP 52 (1992). Metals and arsenic specifications revised at the
63rd JECFA (2004). An ADI 'not specified' was established at the 29th JECFA (1985).
SYNONYMS INS No. 515(i)
DEFINITION
Chemical names Potassium sulfate
C.A.S. number 7778-80-5
Chemical formula K2O4S
Structural formula K2SO4
Formula weight 174.25
Assay Not less than 99.0%
DESCRIPTION Colourless or white crystals or crystalline powder
FUNCTIONAL USES Salt substitute, acidity regulator
