493511 Sigma-Aldrich

Ethyl alcohol, Pure

190 proof, ACS spectrophotometric grade, 95.0%

Synonym: Ethanol, absolute alcohol, non-denatured ethanol



Related Categories Amber Glass Bottles, Ethanol (Ethyl Alcohol), Ethanol (Tax-Paid), Solvent by Type, Solvent Bottles,
grade   ACS spectrophotometric grade
vapor density   1.59 (vs air)
assay   95.0%
expl. lim.   3.1-27.7 %
availability   not available in (Sales restictions may apply)
concentration   190 proof
impurities   H2SO4, passes test (darkened)
  MnO4- reducers, passes test
  acetone, passes test
  isopropanol, passes test
  ≤0.0002 meq/g Titr. base
  ≤0.0005 meq/g Titr. acid
  ≤0.1% methanol
evapn. residue   ≤0.001%
color   APHA: ≤10
bp   78.3 °C
mp   -114 °C
solubility   H2O: passes test
density   0.816 g/mL at 25 °C
λ   H2O reference
UV absorption   λ: 210 nm Amax: 0.40
  λ: 220 nm Amax: 0.25
  λ: 230 nm Amax: 0.15
  λ: 240 nm Amax: 0.05
  λ: 270-400 nm Amax: 0.01


General description

Prices include Federal Tax.

Pure ethyl alcohol is a non-denatured 190proof ethanol. Ethanol, a primary alcohol, is an important raw material for the synthesis of various compounds. It can be synthesized either from molasses by fermentation or by hydration of ethylene. It acts as a hydrogen source and reaction medium during the transfer hydrogenation of carbonyl compounds in the presence of sodium hydroxide. The impact of ethanol/water fumigation on the performance of diesel engines has been studied. Spectrophotometric grade solvent are of high purity grade with low UV absorption.


1, 4, 4×4 L in glass bottle

Other Notes

Sales restrictions may apply

Safety & Documentation

Safety Information

Signal word 
Hazard statements 
UN1170 - class 3 - PG 2 - Ethanol, solution
WGK Germany 
Flash Point(F) 
57.2 °F
Flash Point(C) 
14 °C


Certificate of Analysis


Certificate of Origin


Dispensette™ S
Protocols & Articles


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Peer-Reviewed Papers


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792780 Ethyl alcohol, Pure, 200 proof, ACS reagent, meets USP testing specifications, Excise Tax-free, Permit for use required

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