Citric acid trimethyl ester

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Structural formula
Structural formula of citric acid trimethyl ester
General
Surname Citric acid trimethyl ester
other names

Trimethyl citrate

Molecular formula C 9 H 14 O 7
Brief description

white solid

External identifiers / databases
CAS number 1587-20-8
ECHA InfoCard 100.014.955
PubChem 74112
ChemSpider 66725
Wikidata Q27255361
properties
Molar mass 234.20 g mol −1
Physical state

firmly

Melting point

75-78 ° C

boiling point

283–287 ° C (partial decomposition)

solubility

very soluble in ethanol and diethyl ether

safety instructions
GHS labeling of hazardous substances
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 .

Citric acid trimethyl ester is a chemical compound from the group of carboxylic acid esters .

Occurrence

Citric acid trimethyl ester is one of the components of Dioscorea opposita .

Extraction and presentation

Citric acid trimethyl ester can be obtained by reacting citric acid with methanol in the presence of hydrochloric acid .

properties

Citric acid trimethyl ester is a white crystalline solid that is very soluble in ethanol and diethyl ether.

use

Citric acid trimethyl ester can be used in deodorants to reduce odors. The compound is also used as a plasticizer for PVC .

Individual evidence

  1. ↑ a b c d e f g Data sheet Trimethyl citrate, ≥98.0% from Sigma-Aldrich , accessed on December 15, 2018 ( PDF ).
  2. ↑ A. Townshend, DT Burns, Ryszard Lobinski, EJ Newman, G. Guilbault, Z. Marczenko, H. Onishi: Dictionary of Analytical Reagents . CRC Press, 1993, ISBN 978-0-412-35150-1 , pp. 254 ( limited preview in Google Book search).
  3. ^ A b Chemical Society (Great Britain): Journal of the Chemical Society . The Society, 1877, pp. 456 ( limited preview in Google Book search).
  4. ↑ a b David R. Lide: CRC Handbook of Chemistry and Physics A Ready-reference Book of Chemical and Physical Data . CRC Press, 1995, ISBN 978-0-8493-0595-5 , pp. 554 ( limited preview in Google Book search).
  5. ↑ George Wypych: Handbook of Odors in Plastic Materials . William Andrew, 2013, ISBN 1-4557-2833-0 ( limited preview in Google Book Search).
  6. ↑ Google Patents: EP0006234A1 - Use of a combination of esters of citric acid and / or acetylcitric acid with antioxidants as deodorants - Google Patents , accessed December 15, 2018
  7. ↑ Guneri Akovali: Plastics, Rubber and Health . iSmithers Rapra Publishing, 2007, ISBN 978-1-84735-081-7 , pp. 51 ( limited preview in Google Book search).