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: Vogesensαure;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
DL-Tartaric acid Structure
DL-Tartaric acid Chemical Properties
Melting point 210-212 °C(lit.)
Boiling point 191.59°C (rough estimate)
alpha [α]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℃)
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)