133-37-9 DL-Tartaric acid Tartaric acid
English Name:
|
DL-Tartaric acid |
English synonyms | dl-Tartaric acid anhydrous |
CAS | 133-37-9 |
Molecular formula | C4H6O6 |
Molecular weight | 150.09 |
EINECS: | 205-105-7 |
Storage conditions | Store below +30°C. |
melting point | 210-212 °C(lit.) |
purpose | Widely used in food, medicine, chemical industry, light industry and other industries. For example, DL-Tartaric acid is used as beer foaming agent, food acidifier, corrective agent, refreshing beverage, candy, fruit juice, sauce, cold vegetables, fermentation powder, etc. Its acidity is 1.3 times that of citric acid, especially suitable for grape juice acidifier. DL-Tartaric acid also plays a very important role in tanning, photography, glass, enamel, telecommunication equipment and other industries. |
Item |
Index |
|
Monohydrate |
Anhydrous |
|
Assay(dry),% ≥ |
99.5 |
99.5 |
MP range,°C |
200-206 |
200-206 |
Sulfate(SO4),% ≤ |
0.04 |
0.04 |
Heavy metal(as Pb),% ≤ |
0.001 |
0.001 |
As,% ≤ |
0.0002 |
0.0002 |
Easy oxide |
OK |
OK |
Loss on heat,% ≤ |
11.5 |
0.5 |
Residue on ignition,% ≤ |
0.10 |
0. |
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