D-Tartaric acid NEW

Chinese name: D-tartaric acid

English name: D-Tartaric acid

CAS: 147-71-7

EINECS number: 205-695-6

Molecular formula: C4H6O6

MDL number: MFCD00004238

Molecular weight: 150.09

Appearance: There are three stereoisomers of tartaric acid: right-handed tartaric acid, left-handed tartaric acid and meso-racemic tartaric acid. A mixture of equal amounts of right-handed and left-handed groups whose optical activity cancels each other out is called racemic tartaric acid. Mesomers do not occur in nature and can be chemically synthesized. All tartaric acids are colorless crystals that dissolve easily in water. Melting point 166-170℃

Melting point: 172-174 °C(lit.)

Specific rotation: -12.1 º (c=20, H2O)

Boiling point: 191.59°C (rough estimate)

Density: 1,8 g/cm3

Refractive index: -12.5 ° (C=5, H2O)

Flash point: 210 °C

Storage: Store below +30°C.

Solubility: Water: soluble 100mg/mL, transparent, colorless

Acidity factor (pKa) : 3.0, 4.4(at 25℃)

Form: crystal or crystalline powder

Color: White

Odor: odorless

optical activity: [α]20/D 13.5±0.5°, c = 10% in H2O

Water solubility: 1394 g/L (20 ºC)

Sensitivity: Light Sensitive

Merck: 14,9068

BRN: 1725145

Dielectric constant: 35.9 (-10℃)

Stability: Stable. Incompatible with oxidants, alkalis and reducing agents.

InChIKey: FEWJPZIEWOKRBE-LWMBPPNESA-N

LogP: -1.081 (est)

use

Used as medicine separation agent, food additive, biochemical reagent and so on. Uses: This product is widely used in food industry, such as beer blowing agent, food sourness agent, taste correcting agent, used in refreshing drinks, candy, juice, sauce, cold dishes, baking powder and so on