M. F: C4H2O3
CAS: 108-31-6
Model: GSM-1302
Appearance: 
Very Slight yellow with Transparent , Solid with Flakes
Color( Gardner)        in 50% Benzene Max: 3
Acid Value ,                         mgkoh/g Max: 25
Softening Point                       R&B , ℃ 130 2
Heat Stability                       Max in 180 ℃ for 24 H( color): 4
Molecular formula:           C4H2O3
Molecular weight :98.058
Item Unit Extra class 1st class Conforming unit Content(by MAN) %　≥ 99.5 99 98.5 Molten colour 　≤ 25 50 100 Crystallization point ℃　≥ 52.4 52 51.5 Ash content %　≤ 0.005 0.005 - Iron content Mg/kg　≤ 5 - -