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High purity, all above 98.5%, no impurities after dissolution
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Various cap colors available
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More than 1200 factories to manufacture products and control quality
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Density 1.1 ± 0.1 g/cm3
Boiling point 154.5 ± 0.0 ° C at 760 mmHg
Melting point -26 º C
Molecular formula C5H10O3
Molecular weight 118.131
Flash point 48.9 ± 0.0 ° C
Accurate quality 118.062996
PSA 46.53000
LogP -0.19
Appearance: Transparent, colorless to light yellow
Steam pressure 1.2 ± 0.6 mmHg at 25 ° C
Refractive index 1.420
Storage conditions
1. Store in a sealed container and place in a cool, dry place. The storage area must be kept away from oxidants.
Stability
1. As a combustible substance, it should be kept away from ignition sources and strong oxidizing agents. When on fire, use carbon dioxide, carbon tetrachloride, and powder fire extinguishing agents to extinguish the fire. Water should not be used, and it is not corrosive to iron, soft steel, and aluminum containers. However, the lactic acid generated by hydrolysis is corrosive to copper.
2. Chemical properties: Ethyl lactate is soluble in water, but can be decomposed by water, and the hydrolysis rate is slower than methyl lactate. Ethyl lactate containing water liberates lactic acid and ethanol during heating. Ethyl lactate contains asymmetric carbon atoms and therefore has two optical isomers. During storage in a vacuum dryer, bimolecular condensation occurs to produce lactide. Ethyl lactate is heated to 200-300 ℃ in the presence of a catalyst, or oxidized with air under light to undergo dehydrogenation reaction to produce ethyl pyruvate. When the vapor of ethyl lactate is passed through heated phosphorus pentoxide with oxygen, ethyl pyruvate is also generated.
When ethyl lactate is heated, it undergoes pyrolysis to produce acetaldehyde, carbon monoxide, and ethanol. Heating in the presence of ammonia generates lactic acid amide and ethanol. Condensation in the presence of sulfuric acid produces polymer compounds.
Water solubility: completely miscible; Miscible: alcohol, ether
Molecular structure
1. Molar refractive index: 28.48
2. Molar volume (cm3/mol): 112.4
3. Isometric volume (90.2K): 269.9
4. Surface tension (dyne/cm): 33.2
5. Dielectric constant:
6. Dipole distance (10-24cm3):
7. Polarization rate: 11.29
Computational Chemistry
1. Reference value for hydrophobic parameter calculation (XlogP): 0.2
2. Number of hydrogen bond donors: 1
3. Number of hydrogen bond receptors: 3
4. Number of rotatable chemical bonds: 3
5. Number of tautomers: None
6. Topological molecule polarity surface area 46.5
7. Number of heavy atoms: 8
8. Surface charge: 0
9. Complexity: 79.7
10. Number of Isotope Atoms: 0
11. Determine the number of atomic structure centers: 1
12. Number of uncertain atomic structure centers: 0
13. Determine the number of chemical bond stereocenters: 0
14. Number of uncertain chemical bond stereocenters: 0
15. Number of covalent bond units: 1
More
1. Character: Colorless and odorless liquid, industrial product has the odor of ethyl butyrate.
2. Relative density (g/mL, 20/4 ℃): 1