Succinic acid is a diprotic, dicarboxylic acid with chemical formula C4H6O4 and structural formula HOOC-(CH2)2-COOH. It is a white, odorless solid. Succinate plays a role in the citric acid cycle, an energy-yielding process. The name derives from Latin succinum, meaning amber, from which the acid may be obtained.
Item | Standard | Analysis Result |
Appearance | White crystalline or powder,no visible impurities | Qualified |
Succinic acid,w/% | ≥99.7 | 99.75 |
Moisture,w/% | ≤0.40 | 0.32 |
Iron,w/% | ≤0.001 | 0.0001 |
Chloride(as C1-),w/% | ≤0.002 | <0.001 |
2-Sulfate(As SO4 ),w/% | ≤0.02 | <0.01 |
Residue on ignition,w/% | ≤0.010 | 0.003 |
Melting point range, ºC | 185-188 | 186 |
Ease oxide, (mL/g) | ≤0.40 | 0.05 |
Heavy metals(As Pb),w/% | ≤0.001 | <0.001 |
As2O3,w/% | ≤0.0002 | Not detected |
Analytical conclusion | Pass |
Item | Standard | Analysis Result |
Appearance | White crystalline or powder,no visible impurities | Qualified |
Succinic acid,w/% | ≥99.5 | 99.65 |
Moisture,w/% | ≤0.50 | 0.30 |
Iron,w/% | ≤0.002 | 0.0001 |
Chloride(as C1-),w/% | ≤0.005 | <0.001 |
2-Sulfate(As SO4 ),w/% | ≤0.05 | <0.01 |
Residue on ignition,w/% | ≤0.025 | 0.005 |
Melting point range, ºC | 184-188 | 186 |
Ease oxide, (mL/g) | ≤0.60 | 0.23 |
Heavy metals(As Pb),w/% | ≤0.005 | <0.001 |
As2O3,w/% | ≤0.0002 | Not detected |
Analytical conclusion | Qualified product |