Ethylene glycol distearate

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Structural formula
Structural formula of ethylene glycol distearate
General
Surname Ethylene glycol distearate
other names
  • Ethylene glycol dioctadecanoate
  • EGDS
  • GLYCOL DISTEARATE ( INCI )
  • Elfan L 310
  • Emerest 2355
Molecular formula C 38 H 74 O 4
External identifiers / databases
CAS number 627-83-8
EC number 211-014-3
ECHA InfoCard 100.010.014
PubChem 61174
Wikidata Q10860420
properties
Molar mass 595.01 g mol −1
Physical state

firmly

Melting point

62 to 77 ° C

solubility

almost insoluble in water

safety instructions
GHS labeling of hazardous substances
07 - Warning

Caution

H and P phrases H: 302-312-315-319-332-335
P: 261-280-301 + 312-302 + 352-304 + 340-305 + 351 + 338-332 + 313
Toxicological data

16,000 mg kg −1 ( LD 50 ,  rat ,  oral )

As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Ethylene glycol distearate (EGDS) is the diester of stearic acid and ethylene glycol .

use

Declaration of the ingredients of a shampoo according to INCI

Ethylene glycol distearate can be used as an opacifying agent , a pearlescent agent , or as a dispersant in cleaning agents (for example soaps, shampoos or lotions ). Other pearlescent agents, inorganic or made from fish extracts, are either too toxic or expensive. Therefore, fatty acid derivatives such as ethylene glycol distearate are very popular as pearlescent agents. In addition, it is used as a diluent for food coloring to the coloring of eggshells used.

Extraction

The esterification of stearic acid with 1,2-ethanediol results in two products. On the one hand, the diester ethylene glycol distearate and the monoester ethylene glycol stearate . Using acid catalysis at normal pressure, Li Young & Co. has succeeded in increasing the esterification yield to 97%.

Individual evidence

  1. ↑ Entry on GLYCOL DISTEARATE in the CosIng database of the EU Commission, accessed on December 28, 2019.
  2. ↑ Patent JP04342766 : polymer compounds with excellent moldability. Published November 30, 1992 , Inventor: Yoshihisa Katayama. ‌
  3. ^ A b E. W. Flick (Ed.): Industrial Surfactants: An Industrial Guide . Noyes Publications, New Jersey, 1993, ISBN 0-8155-1332-1 , pp. 229, 287.
  4. ↑ a b data sheet Ethylene distearate from Sigma-Aldrich , accessed on August 31, 2017 ( PDF ).
  5. ↑ a b Pfaltz & Bauer: Ethylene glycol distearate MSDS , accessed on October 23, 2017
  6. ↑ a b Patent US2004028676 : Opacificiers. Published April 8, 2004 , inventor: Kevan Hatchman. ‌
  7. ↑ Patent DE202014010286 : Cleaning preparations containing activated carbon. Published on May 27, 2015 . ‌
  8. ↑ VR Preedy (Ed.): Handbook of Hair in Health and Disease . Wageningen Academic Publishers, Netherlands, 2012, ISBN 978-90-8686-728-8 , e-book, p. 445.
  9. ↑ GA Burdock (Ed.): Encyclopedia of Food and Color Additives . CRC Press Inc., Volume 1, 1997, ISBN 0-8493-9414-7 , p. 972.
  10. ↑ M. Hosseini-Sarvari, E. Sodagar (Ed.): Esterification of free fatty acids (Biodiesel) using nano sulfated-titania as catalyst in solvent-free conditions . In: Comptes Rendus Chimie , Elsevier Masson, 2012, doi: 10.1016 / j.crci.2012.10.016 , p. 234.
  11. ↑ Patent CN105294432 : Published February 3, 2016 , Inventor: Li Yong; Ren Chunhua; Jiang Ying; Jiang Diyoung; Dai Zhiqian. ‌