DL-Tartaric Acid
Chemical Name: 2,3-Dhydroxybutanedioic acid
Structural Formula: 
Molecular Formula: C4H6O6
Molecular Weight: 150.09
CAS NO: 133-37-9
Properties:
Colorless crystals or white power, without odor, with sour taste, stable in air, soluble in water, ethanol and diethyl ether. It is the compound of equivalent D-tartaric acid and L+tartaric acid, usually contains one or two crystalline water and loses it when heated to 100°C.
Applications:
DL-Tartaric Acid is widely used in food, medical, chemical and light industry such as being used as beer foaming agent, food acidulant and corrigent. DL-tartaric acid is applied to soft drinks, candies, juices, cold dishes and so on. It is three times sourer than citric acid. So it can especially be used as acidulant for wines. DL-tartaric acid also plays a very important role in tanning, glass, enamel and other relevant industries.
Specifications:
| Item | DL-Tartaric Acid BP98 |
GB15358-94 |
||
Content% |
99.5-101.0 |
99.7 |
99.5 |
99.5 |
Ca ≤% |
0.02 |
- |
- |
- |
Melting point |
- |
- |
200 -206°C |
200 -260°C |
Heavy metals(Pb) ≤% |
0.001 |
0.001 |
0.001 |
0.001 |
Chloride (Cl) ≤% |
0.01 |
- |
- |
- |
Sulphate (SO4) ≤% |
0.015 |
Qualified |
0.04 |
0.04 |
Oxalate (C2O4) ≤% |
0.035 |
Qualified |
Qualified |
Qualified |
Loss on drying ≤% |
0.2 |
0.5 |
11.5 |
0.5 |
Residue on ignition % ≤ |
- |
0.05 |
0.10 |
0.10 |
Arsenic (As) % ≤ |
- |
0.0003 |
0.0002 |
0.0002 |
Package & Storage:
DL-Tartaric Acid is packed in 25kg kraft bags and it should be kept in a clear and dry warehouse.