Glycol distearate
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| Names | |
|---|---|
| Preferred IUPAC name
Ethane-1,2-diyl di(octadecanoate) | |
| Other names
Ethylene glycol distearate; Ethylene distearate; Ethylene glycol dioctadecanoate
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| Identifiers | |
3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.010.014 |
PubChemCID
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| UNII | |
CompTox Dashboard(EPA)
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| Properties | |
| C38H74O4 | |
| Molar mass | 595.006g·mol−1 |
| Appearance | White Flake |
| Melting point | 65 to 73 °C (149 to 163 °F; 338 to 346 K)[1] |
| Insoluble | |
| Hazards | |
| Lethal doseor concentration (LD, LC): | |
LD50(median dose)
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4,700 mg/kg (rat) |
Except where otherwise noted, data are given for materials in theirstandard state(at 25 °C [77 °F], 100 kPa).
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Glycol distearateis thediesterofstearic acidandethylene glycol.It is mostly commonly encountered inpersonal careproducts andcosmeticswhere it is used to producepearlescenteffects as well as amoisturizer.
Synthesis
[edit]Glycol distearate may be produced via theesterificationof stearic acid (or its esters) with ethylene glycol. It can also be produced by a reaction of stearic acid withethylene oxide.[2]
Applications
[edit]When forced to crystalize as thin platelets glycol distearate can give liquids and gels a pearlescent appearance.[3]This is often used by the producers of personal care products (e.g.shower gel) to increase the visual appeal of their products. It may also act as a skin moisturizer.
Glycol distearate is also commonly used as an embedding agent in microscopy.
See also
[edit]References
[edit]- ^Ethylene glycol distearate,chemicalland21
- ^Wrigley, A. N.; Smith, F. D.; Stirton, A. J. (January 1959). "Reaction of ethylene oxide or propylene oxide with long-chain fatty acids. Mono- and diester formation".Journal of the American Oil Chemists' Society.36(1): 34–36.doi:10.1007/BF02540263.
- ^Bolzinger, M.A.; Cogne, C.; Lafferrere, L.; Salvatori, F.; Ardaud, P.; Zanetti, M.; Puel, F. (May 2007). "Effects of surfactants on crystallization of ethylene glycol distearate in oil-in-water emulsion".Colloids and Surfaces A: Physicochemical and Engineering Aspects.299(1–3): 93–100.doi:10.1016/j.colsurfa.2006.11.026.