DL-Tartaric acid CAS# 133-37-9
DL-Tartaric acid is a water- and alcohol-soluble colorless crystalline solid with a characteristic acid taste and a melting temperature of 170??C(338??F). Naturally occurring tartaric acid is generally of the L-configuration (based on the absolute configuration of D-glyceric acid). The L-forms of tartrates are dextrorotatory in solution and thus are designated as L(+)-tartrates. It is also known as dihydroxy succinic acid. Tartaric acid is used as a chemical intermediate and a sequestrant,as well as in tanning, effervescent beverages, baking powder, ceramics, photography, textile processing,mirror silvering,and metal coloring.
DL-Tartaric acid CAS# 133-37-9
| DL-Tartaric acid Basic information |
| Product Name: | DL-Tartaric acid |
| Synonyms: | Vogesens??ure;DL-TARTARIC ACID;dl-dihydroxysuccinic acid;DL-2,3-DIHYDROXYBUTANEDIOIC ACID;DL-Tartaric acid ReagentPlus(R), 99%;DL-Tartaric ac;DL-Tartaric acid Vetec(TM) reagent grade, 99%;(2R,3R)-rel-2,3-Dihydroxysuccinic acid |
| CAS: | 133-37-9 |
| MF: | C4H6O6 |
| MW: | 150.09 |
| EINECS: | 205-105-7 |
| Product Categories: | Food & Feed ADDITIVES;Food additive and acidulant;133-37-9 |
| Mol File: | 133-37-9.mol |
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| DL-Tartaric acid Chemical Properties |
| Melting point | 210-212???C(lit.) |
| Boiling point | 191.59??C (rough estimate) |
| alpha | [??]D20 -0.2??+0.2?? (c=20, H2O) |
| density | 1.788 |
| vapor pressure | <0.1 hPa (20 ??C) |
| refractive index | 1.5860 (estimate) |
| FEMA | 3044 | TARTARIC ACID (D-, L-, DL-, MESO-) |
| Fp | 210 ??C |
| storage temp. | Store below +30??C. |
| solubility | H2O: 0.1?g/mL, clear |
| form | Liquid |
| pka | 3.03, 4.37(at 25??) |
| color | White |
| PH | 3.19(1 mM solution);2.58(10 mM solution);2.03(100 mM solution); |
| Odor | at 100.00 %. very mild caramellic |
| Odor Type | odorless |
| Water Solubility | soluble |
| Merck | 14,9069 |
| JECFA Number | 621 |
| BRN | 1725148 |
| Dielectric constant | 35.9??-10?棩 |
| Stability: | Stable. Incompatible with bases, oxidizing agents, reducing agents, silver. |
| InChIKey | FEWJPZIEWOKRBE-UHFFFAOYSA-N |
| LogP | -1.43 |
| CAS DataBase Reference | 133-37-9(CAS DataBase Reference) |
| NIST Chemistry Reference | Tartaric acid(133-37-9) |
| EPA Substance Registry System | Butanedioic acid, 2,3-dihydroxy-, (2R,3R)-rel- (133-37-9) |
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