Conform to the standard of FCC IV
Appearance White Granular or Powder Assay(C6H7O2K) 99.0%-101.0% Acidity or Alkalinity ≤1.0% (as C6H8O2 or K2CO3) Heavy Metal(as Pb) ≤10 ppm Arsenic(as As) ≤2 ppm Mercury(as Hg) ≤1 ppm Loss on drying (105°C 3 hours) ≤1.0% Aldehydes(as HCHO) ≤0.1% Melting point 133-135°C Lead ≤5ppm Clarify Conform