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Glycerine acetate

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(Redirected fromGlyceryl monoacetate)
Glycerine acetate
R = H or CH3C(=O)
Names
Other names
glycerol acetate
glyceryl acetate
1,2,3-propanetriol acetate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard100.014.216Edit this at Wikidata
EC Number
  • 1-monoacetin: 247-704-6
  • 1,2-diacetin: 246-941-2
  • triacetin: 203-051-9
RTECS number
  • triacetin: AK3675000
UNII
  • 1-monoacetin: InChI=1S/C5H10O4/c1-4(7)9-3-5(8)2-6/h5-6,8H,2-3H2,1H3
    Key: KMZHZAAOEWVPSE-UHFFFAOYSA-N
  • 1,2-diacetin: InChI=1S/C7H12O5/c1-5(9)11-4-7(3-8)12-6(2)10/h7-8H,3-4H2,1-2H3
    Key: UXDDRFCJKNROTO-UHFFFAOYSA-N
  • triacetin: InChI=1S/C9H14O6/c1-6(10)13-4-9(15-8(3)12)5-14-7(2)11/h9H,4-5H2,1-3H3
    Key: URAYPUMNDPQOKB-UHFFFAOYSA-N
  • 1-monoacetin: CC(=O)OCC(CO)O
  • 1,2-diacetin: CC(=O)OCC(CO)OC(=O)C
  • triacetin: CC(=O)OCC(COC(=O)C)OC(=O)C
Properties
Variable
Molar massVariable
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa).
Chemical compound

Glycerine acetate is a mixture ofesters produced from theesterification ofglycerol (1) withacetic acid. This reaction produces five congeners:

  • the two monoacetylglycerols / MAG / monoacetin (2 and3)
  • the two diacetylglycerols / DAG / diacetin /glyceryl diacetate (4 and5)
  • the one triacetalglycerol / TAG /triacetin (6)
Structures of all possible acetate esters of glycerol
Structures of all possible acetate esters of glycerol

In addition, two of the congeners,2 and4, arechiral and can exist in either of twoenantiomeric forms.

Uses

[edit]

DAG and TAG can be used as fuel additives for improving the cold andviscosity properties ofbiodiesel or theantiknocking properties ofgasoline.[1]

Notes

[edit]
  1. ^J. A. Melero; R. vanGrieken; G. Morales; M. Paniagua (2007). "Acidic Mesoporous Silica for the Acetylation of Glycerol: Synthesis of Bioadditives to Petrol Fuel".Energy & Fuels.21 (3):1782–1791.doi:10.1021/ef060647q.
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