DL-Tartaric acid

DL- tartric acid name

DL- tartaric acid

DL-Tartaric Acid

Chinese alias DL - dihydroxy succinate | | 2, 3 - dihydroxy succinic acid 1, 4 butyl diacid | DL - 2, 3 - dihydroxy succinic acid | | grape grape acid racemic tartaric acid

More English nicknames

Biological activity of DL-tartrate

Description DL-tartric acid is a non-racemic mixture of L- and D-tartric acid with antioxidant activity [1][2].

Related category

Research Field > > other

Signal path > > Other; > other

Reference literature

[1]. Mathias Ibert, et al. Determination of the side-products formed during the nitroxide-mediated bleach oxidation of glucose to glucaric acid. Carbohydr Res. 2002 Jun 5; 337 (11) : 1059-63.

[2]. Thirada Piyanan, et al. An Instrument-free Detection of Antioxidant Activity Using Paper-based Analytical Devices Coated with Nanoceria. Anal Sci. 2018; 34 (1) : 97-102.

Physical and chemical properties of DL-tartric acid

Density 1.9± 0.1g /cm3

Boiling point 399.3±42.0 °C at 760 mmHg

Melting point 200-206ºC

Molecular formula C4H6O6

Molecular weight 150.087

Flash point 209.4±24.4 °C

Accurate mass 150.016434

PSA 115.06000

LogP minus 1.43

Appearance properties white crystalline powder

Vapor pressure 0.0±2.1 mmHg at 25°C

Refractive index 1.586

Storage condition

1. Storage, should be sealed storage.

2. Use woven bags or gunny bags lined with plastic bags, each bag weighs 25kg or 50kg net. Keep away from oxidants and fire sources, do not store together with liquid alkali, pay attention to rain moisture-proof, store in dry and cool place. Store and transport in accordance with general chemical regulations.

stability

1. This product has low toxicity. It is highly acidic and corrosive to teeth, and has been reported to cause tooth damage and gastritis in operators working at concentrations of 1.1mg/m3. Therefore, the operation site should have good ventilation conditions, production equipment to do no leakage.

2. It exists in tobacco leaves.

Water solubility H2O: 0.1 g/mL, the clear | soluble

Molecular structure

V. Molecular Property Data:

1. Molar refractive index: 26.69

2. Molar volume (cm3/mol) : 79.5

3. Isotropic volume (90.2K) : 263.1

4. Surface tension (3.0 dyne/cm) : 119.4

5. Polarizability (0.5 10-24cm3) : 10.58

Computational chemistry

1. Reference value of hydrophobic parameter calculation (XlogP) : -1.9

2. Number of hydrogen bond donors: 4

3. Number of hydrogen bond receptors: 6

4. Number of rotatable bonds: 3

5. Number of tautomers:

6. Topological molecular polar surface area (TPSA) : 115

7. Number of heavy atoms: 10

8. Surface charge: 0

9. Complexity: 134

10. Number of isotope atoms: 0

11. Determine the number of atomic constitutive centers: 0

12. Number of uncertain atomic constitutive centers: 2

13. Determine the number of chemical bond structure centers: 0

14. Number of uncertain chemical bond structure centers: 0

15. Number of covalent bond units: 1

1. Properties: White crystal, odorless, sour taste. It's an equal mixture of left-handed and right-handed tartaric acid. 2. Solubility: easily soluble in water and ethanol, slightly soluble in ether, chloroform. Insoluble in benzene. 3. Relative density (d 25 4) : 1.788 (monohydrate). 4. Melting point (℃) : 206 (decomposition at 210℃), 203.4 (monohydrate). 6. Boiling point (ºC) : 399.3