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296996 Sigma-Aldrich

Methyl acetate

anhydrous, 99.5%

  • CAS Number 79-20-9

  • Linear Formula CH3COOCH3

  • Molecular Weight 74.08

  •  Beilstein/REAXYS Number 1736662

  •  EC Number 201-185-2

  •  MDL number MFCD00008711

  •  PubChem Substance ID 57648396

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Properties

Related Categories Anhydrous Solvents, Solvent Bottles, Solvent Packaging Options, Solvent by Application, Solvents,
grade   anhydrous
vapor density   2.55 (vs air)
vapor pressure   165 mmHg ( 20 °C)
InChI Key   KXKVLQRXCPHEJC-UHFFFAOYSA-N
assay   99.5%
autoignition temp.   936 °F
expl. lim.   16 %
impurities   <0.003% water
  <0.005% water (100 mL pkg)
evapn. residue   <0.0003%
refractive index   n20/D 1.361 (lit.)
bp   57-58 °C (lit.)
mp   −98 °C (lit.)
density   0.934 g/mL at 25 °C

Description

General description

Methyl acetate (MA) is an aliphatic ester that can be prepared via carbonylation of dimethyl ether over zeolites. MA is formed as a by-product during the preparation of polyvinyl alcohol from acetic acid and methanol.

Application

Methyl acetate may be used for the preparation of fatty acid methyl esters and triacetin from rapeseed oil via non-catalytic trans-esterification reaction under super-critical conditions.

Packaging

1, 2 L in Sure/Seal™

100 mL in Sure/Seal™

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Supplemental Hazard Statements 
Repeated exposure may cause skin dryness or cracking.
RIDADR 
UN1231 - class 3 - PG 2 - Methyl acetate
WGK Germany 
1
RTECS 
AI9100000
Flash Point(F) 
8.6 °F
Flash Point(C) 
-13 °C

Documents

Certificate of Analysis

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Certificate of Origin

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Dispensette™ S
Protocols & Articles

Articles

Pressure-Temperature Calculator for Solvents

*Calculations provide estimated results based on Antoine's Coefficients and their associated temperature range values. Antoine's Coefficients were obtained from the National Institute of Standards an...

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Pressure-Temperature Nomograph Interactive Tool

Use the interactive controls above to simplify calculations and improve the efficiency of your distillation or evaporation requirements.
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Properties of Solvents Table

The table below presents the physical characteristics of common solvents. Easily reference or compare solvent properties like boiling point, density, and refractive index all from one list.
Keywords: Gas chromatography, Green chemistry, High performance liquid chromatography, Melting, Solvents

Peer-Reviewed Papers
15

References

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