| ≥1 piece |
fumaric acid food grade
Item Unit Index RESULT
Purity (base on C4H4O4) % 99.50~100.50 (dry basis) 99.81%
Heavy metal (base on Pb) PPM no more than 3 2PPM
Arsenic (base on As) PPM no more than 3 1PPM
Water content % no more than 0.5 0.19%
Melting range 286~302 298
Residue on ignition % no more than 0.1 0.025
Chroma (in 5% ethanol) # no more than 15 12
maleic acid % no more than 0.1 0.018
ASH % no more than 0.1 0.025
SULFATE % no more than 0.01 0.005