Ethylene Glycol Monostearate Ethylene Glycol Monostearate
Structural formula
| Business number | 033U |
|---|---|
| Molecular formula | C20H40O3 |
| Molecular weight | 328.53 |
| label |
2-Hydroxyethyl octadecanoate, Ethylene glycol monostearate, Ethylene glycol monostearate, Ethylene glycol stearate, Ethylene stearate, Ethylene stearate, Ethylene glycol monostearate, pearlescent agent, Ethyleneglycol monostearate, Dispersant, Solubilizers, lubricants, linear compound |
Numbering system
CAS number:111-60-4
MDL number:None
EINECS number:203-886-9
RTECS number:WI4100000
BRN number:None
PubChem ID:None
Physical property data
1. Properties: White or cream-colored solid
2. Density (g/mL, 20℃): Undetermined
3. Relative vapor density (g/mL, air=1): Undetermined Determine
4. Melting point (ºC): 55-60
5. Boiling point (ºC, normal pressure): 149
6. Boiling point (ºC, 2.0 kPa): Not determined
7. Refractive index: Not determined
8. Flash point (ºC): Not determined
9. Specific rotation (º ): Undetermined
10. Autoignition point or ignition temperature (ºC): Undetermined
11. Vapor pressure (mmHg, 20ºC): Undetermined
12. Saturated vapor pressure (kPa, 20 ºC): Undetermined
13. Heat of combustion (KJ/mol): Undetermined
14. Critical temperature (ºC): Undetermined Determined
15. Critical pressure (KPa): Undetermined
16. Log value of oil-water (octanol/water) partition coefficient: Undetermined
17 . Explosion upper limit (%, V/V): Undetermined
18. Explosion lower limit (%, V/V): Undetermined
19. Solubility: soluble in ether, Chloroform, acetone, methanol, ethanol, isoethyl alcohol, toluene, soybean oil and mineral oil are insoluble in water.
Toxicological data
None
Ecological data
None
Molecular structure data
1. Molar refractive index: 98.01
2. Molar volume (cm3/mol): 359.6
3. Isotonic specific volume (90.2K ): 869.3
4. Surface tension��dyne/cm): 34.1
5. Polarizability (10-24cm3): 38.85
Compute chemical data
1. Hydrophobic parameter calculation reference value (XlogP): 7.8
2. Number of hydrogen bond donors: 1
3. Number of hydrogen bond acceptors: 3
4. Number of rotatable chemical bonds: 19
5. Number of tautomers:
6. Topological molecular polar surface area (TPSA): 46.5
7. Number of heavy atoms: 23
8. Surface charge: 0
9. Complexity: 241
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 Number: 0
14. Number of uncertain chemical bond stereocenters: 0
15. Number of covalent bond units: 1
Properties and stability
Has good emulsification, dispersion, lubrication, softness, antistatic and pearlescent properties.
Storage method
Packed in plastic barrels. Store in a cool place.
Synthesis method
Put 0.95 mol of stearic acid, 1 mol of ethylene glycol and a catalyst amount of sulfuric acid into the reaction kettle. Heat and reflux, and continuously drain the generated water through the water separator. After 3 to 4 hours of reaction, take a sample to measure the acid value. When the acid value drops below 6 mg KOH/g, the esterification reaction is completed, and then the material liquid is poured into the neutralization kettle. , neutralized to an acid value of 4mgKOH/g. Drain the alkali solution, then use hydrogen peroxide to decolorize, cool and crystallize, centrifuge, filter, dry, and package to obtain the finished product.
CH2OHCH2OH+C17H35COOHCH2OOCC17H35CH2OH+H2O
Purpose
It can be used as emulsifier, dispersant, solubilizer, lubricant, softener, defoaming agent, antistatic agent and pearlescent agent, and is used in metal processing, fiber processing, cosmetics, detergents and pharmaceutical production.
