Palmitic acid ethyl ester

Structural formula
General
Surname	Palmitic acid ethyl ester
other names	Ethyl palmitate; Ethyl hexadecanoate; Ethyl hexadecanoate;
Molecular formula	C 18 H 36 O 2
Brief description	white odorless mass or liquid
External identifiers / databases
EC number	211-064-6
ECHA InfoCard	100.010.059
PubChem	12366
ChemSpider	11860
Wikidata	Q18354123
properties
Molar mass	284.48 g mol −1
Physical state	liquid or solid, depending on the room temperature
density	0.86 g cm −3
Melting point	24-26 ° C
boiling point	192–194 ° C (13 hPa)
solubility	practically insoluble in water; miscible with ethanol, dimethyl sulfoxide, chloroform and ethyl acetate;
Refractive index	1.440 (20 ° C)
safety instructions
GHS labeling of hazardous substances	no GHS pictograms
	no GHS pictograms
H and P phrases	H: no H-phrases
	P: no P-phrases
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

Palmitic acid ethyl ester is a chemical compound from the group of fatty acid esters .

Occurrence

Ethyl palmitate is one of the major volatile compounds found in cooked rice , wine, and Luzhou raw liquor (and other brandies ). It occurs naturally in licorice root and chamomile .

Extraction and presentation

Palmitic acid ethyl ester can be obtained by passing hydrogen chloride through an alcoholic solution of palmitic acid .

properties

Palmitic acid ethyl ester is a flammable, hardly flammable, deliquescent, white and odorless solid mass, which melts at a slightly elevated temperature and which is practically insoluble in water. The compound decomposes above 300 ° C. It occurs in two forms that have a melting point of 19 ° C and 24 ° C.

use

Palmitic acid ethyl ester is used in the production of pharmaceutical creams, ointments, skin and hair oils. It acts as a lubricant on the surface of the skin to keep it soft and smooth. The detection of ethyl myristate , ethyl palmitate, ethyl oleate and ethyl stearate in human hair is determined in medicine as a marker for excessive alcohol consumption .

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Entry on ethyl palmitate in the GESTIS substance database of the IFA , accessed on December 17, 2018(JavaScript required) .
↑ ^a ^b Data sheet Ethyl palmitate, 97% from AlfaAesar, accessed on December 19, 2018 ( PDF )(JavaScript required) .
↑ ^a ^b Data sheet Ethyl palmitate, ≥95%, FG from Sigma-Aldrich , accessed on December 17, 2018 ( PDF ).
↑ Hans-Dieter Belitz, Werner Grosch: Textbook of food chemistry . Springer-Verlag, 2013, ISBN 978-3-662-08308-6 , pp. 743 ( limited preview in Google Book search).
↑ H.-D. Belitz, W. Grosch: Textbook of food chemistry . Springer-Verlag, 2013, ISBN 978-3-662-08306-2 , pp. 697 ( limited preview in Google Book search).
↑ George Fownes: A Manual of Elementary Chemistry, Theoretical and Practical From the 10th Revised and Corrected English Ed . HC Lea, 1870, p. 622 ( limited preview in Google Book search).
↑ ^a ^b Entry on ethyl palmitate. In: Römpp Online . Georg Thieme Verlag, accessed on December 19, 2018.
↑ Axel M. Gressner, Torsten Arndt: Lexicon of Medical Laboratory Diagnostics . Springer-Verlag, 2013, ISBN 978-3-642-12921-6 , pp. 480 ( limited preview in Google Book Search).

[GESTIS-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ Entry on ethyl palmitate in the GESTIS substance database of the IFA , accessed on December 17, 2018(JavaScript required) .

[Alfa-2] Data sheet Ethyl palmitate, 97% from AlfaAesar, accessed on December 19, 2018 ( PDF )(JavaScript required) .

[Sigma-3] Data sheet Ethyl palmitate, ≥95%, FG from Sigma-Aldrich , accessed on December 17, 2018 ( PDF ).

[Hans-Dieter_Belitz,_Werner_Grosch-4] Hans-Dieter Belitz, Werner Grosch: Textbook of food chemistry . Springer-Verlag, 2013, ISBN 978-3-662-08308-6 , pp. 743 ( limited preview in Google Book search).

[H.-D._Belitz,_W._Grosch-5] H.-D. Belitz, W. Grosch: Textbook of food chemistry . Springer-Verlag, 2013, ISBN 978-3-662-08306-2 , pp. 697 ( limited preview in Google Book search).

[George_Fownes-6] George Fownes: A Manual of Elementary Chemistry, Theoretical and Practical From the 10th Revised and Corrected English Ed . HC Lea, 1870, p. 622 ( limited preview in Google Book search).

[RömppOnline-7] Entry on ethyl palmitate. In: Römpp Online . Georg Thieme Verlag, accessed on December 19, 2018.

[Axel_M._Gressner,_Torsten_Arndt-8] Axel M. Gressner, Torsten Arndt: Lexicon of Medical Laboratory Diagnostics . Springer-Verlag, 2013, ISBN 978-3-642-12921-6 , pp. 480 ( limited preview in Google Book Search).