Items | Standard |
Colour | White or almost white |
Odor | Special sour |
Organization status | Cystalline powder or particles |
DL-Malic acid(AsC4H6O5) w/% | 99.0~100.5 |
Specific rotation [α] D25℃ | -0.10~+0.10 |
Arsenic(As) mg/kg | ≤2 |
Lead Pb mg/kg | ≤2 |
Residue on ignition w/% | ≤0.1 |
Fumaric acid w/% | ≤1.0 |
Maleic acid w/% | ≤0.05 |
Water-insoluble matter w/% | ≤0.1 |