DL-Tartaric acid , AR , 133-37-9

Synonym(s):
DL-2,3-Dihydroxybutanedioic acid;DL-Tartaric acid

CAS NO.：133-37-9

Empirical Formula: C4H6O6

Molecular Weight: 150.09

MDL number: MFCD00071626

EINECS: 205-105-7

PRODUCT 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)
• FEMA: 3044 | TARTARIC ACID (D-, L-, DL-, MESO-)
• refractive index: 1.5860 (estimate)
• Flash point: 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

Description and Uses

DL-Tartaric acid is used as a synergist for antioxidants, emulsifier, sequestrant and flavoring agent. It is also added with citric acid to prepare effervescent salts, thereby enhancing the taste of oral medications. It is also utilized in pigments, processing aids, ink, toner and colorant products. It acts as a chelating agent in metal and farming industries. Further, it is used as lubricant and grease. It is mixed with sodium bicarbonate and used as a leavening agent in food preparation. In the pharmaceutical industry, it is utilized in the preparation of tartar emetic, which is used in cough syrup as an expectorant.

Safety

• Symbol(GHS): GHS05
• Signal word: Danger
• Hazard statements: H318
• Precautionary statements: P280-P305+P351+P338+P310
• Hazard Codes: Xi
• Risk Statements: 36/37/38-41
• Safety Statements: 26-37/39-36
• WGK Germany: 3
• Autoignition Temperature: 425 °C
• TSCA: Yes
• HS Code: 29181200