TARTARIC ACID

1. DL-tartaric acid

Assay: 99.5% min
Heavy metals (Pb): 0.001% max
Chloride (Cl): 0.01% max
Arsenic (As): 0.0002% max
Sulphate (SO42-): 0.015% max
Loss on drying: 0.5% max
Sulphated ash: 0.1% max
Size: 3-200 mesh according to your requirement

2.L(+) tartaric acid

FCCIV
Assay: 99.5%∼101.0%
[a]20/D:+12.0°-+12.8°
Heavy metals(as Pb):10mg/kg max
Residue on ignition: 0.1% max
Loss on drying: 0.2% max
Chloride(as Cl): 0.01% max 
Oxalate(as H2C2O2): 0.035% max 
Sulfate(as SO4) : 0.015% max
Calcium: 0.02% max