Diethylene glycol dibenzoate Diethylene glycol dibenzoate
Structural formula
| Business number | 03CF |
|---|---|
| Molecular formula | C18H18O5 |
| Molecular weight | 314.33 |
| label |
Diethylene glycol dibenzoate, 2,2′-Oxodiethanol dibenzoate, Diethylene glycol dibenzoate, DEDB, 2,2′-Oxydiethylene dibenzoate, 2,2′-Oxybis-ethanodibenzoate, plasticizer, adhesive, Multifunctional solvent |
Numbering system
CAS number:120-55-8
MDL number:MFCD00020679
EINECS number:204-407-6
RTECS number:ID6650000
BRN number:None
PubChem number:24862963
Physical property data
1. Properties: colorless oily liquid.
2. Boiling point (ºC, 0.933kPa): 235~237
3. Relative density (g/mL, 20/4ºC): 1.1751
4 . Refractive index (20ºC): 1.5488
5. Flash point (ºC, open cup): 232
6. Freezing point (ºC): 15.9
7 . Absolute viscosity (mPa·s, 20ºC): 111.6
8. Solubility: Soluble in organic solvents, slightly soluble in water.
Toxicological data
1. Acute toxicity: Rat oral LD50: 544mg/kg; rabbit subcutaneous LD50: 20mL/kg
Ecological data
None yet
Molecular structure data
1. Molar refractive index: 85.01
2. Molar volume (cm3/mol): 265.4
3. Isotonic specific volume (90.2K ): 691.3
4. Surface tension (dyne/cm): 45.9
5. Dielectric constant:
6. Dipole moment (10-24cm3):
7. Polarizability: 33.70
Compute chemical data
1. Reference value for hydrophobic parameter calculation (XlogP): None
2. Number of hydrogen bond donors: 0
3. Number of hydrogen bond acceptors: 5
4. Number of rotatable chemical bonds: 10
5. Number of tautomers: none
6. Topological molecule polar surface area 61.8
7. Number of heavy atoms: 23
8. Surface charge: 0
9. Complexity: 322
10. Number of isotope atoms: 0
11. Determine the number of atomic stereocenters: 0
12. Uncertain number of atomic stereocenters: 0
13. Determine the number of chemical bond stereocenters: 0
14. Uncertain number of chemical bond stereocenters: 0
15.Number of covalent bond units: 1
Properties and stability
This product has low toxicity. Oral administration of LD505.44g/kg to rats.
Storage method
Store sealed in a cool place. Packed in iron drums, stored and transported according to general chemical regulations.
Synthesis method
Using diethylene glycol and benzoic acid as raw materials, it is directly esterified and then neutralized, dealcoholized and refined to obtain the finished product. Raw material consumption quota: diethylene glycol 400kg/t; benzoic acid 900kg/t.
Purpose
This product is a plasticizer for polyvinyl chloride, polyvinyl acetate and other resins. It has the characteristics of strong solubility, good compatibility, low volatility, oil resistance, water resistance, light resistance and good pollution resistance. It is suitable for processing. PVC flooring, plasticizer paste, polyvinyl acetate adhesive and synthetic rubber, etc.
