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186260

Sigma-Aldrich

Ethanesulfonic acid

95%

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Linear Formula:
CH3CH2SO3H
CAS Number:
Molecular Weight:
110.13
Beilstein:
1743071
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Assay

95%

refractive index

n20/D 1.434 (lit.)

bp

123 °C/0.01 mmHg (lit.)

mp

−17 °C (lit.)

solubility

water: soluble

density

1.35 g/mL at 25 °C (lit.)

SMILES string

O=S(O)(CC)=O

InChI

1S/C2H6O3S/c1-2-6(3,4)5/h2H2,1H3,(H,3,4,5)

InChI key

CCIVGXIOQKPBKL-UHFFFAOYSA-N

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This Item
4713568.2001659510
Ethanesulfonic acid 95%

Sigma-Aldrich

186260

Ethanesulfonic acid

Methanesulfonic acid ≥99.0%

Sigma-Aldrich

471356

Methanesulfonic acid

Ethanesulfonic acid for synthesis

Sigma-Aldrich

8.20016

Ethanesulfonic acid

Methanesulfonic acid suitable for HPLC, LiChropur™, ≥99.5% (T)

Supelco

59510

Methanesulfonic acid

refractive index

n20/D 1.434 (lit.)

refractive index

n20/D 1.429 (lit.)

refractive index

-

refractive index

n20/D 1.428-1.430, n20/D 1.429 (lit.)

bp

123 °C/0.01 mmHg (lit.)

bp

167 °C/10 mmHg (lit.)

bp

136-140 °C/3 hPa

bp

167 °C/10 mmHg (lit.)

mp

−17 °C (lit.)

mp

17-19 °C (lit.)

mp

-17 °C

mp

17-19 °C (lit.)

solubility

water: soluble

solubility

water: soluble 1,000 g/L at 20 °C

solubility

-

solubility

-

density

1.35 g/mL at 25 °C (lit.)

density

1.481 g/mL at 25 °C (lit.)

density

1.34 g/cm3 at 20 °C

density

1.481 g/mL at 25 °C (lit.)

General description

Ethanesulfonic acid participates in electrolytic reduction of perrhenate solutions.

Ethanesulfonic acid is a sulfonic acid, commonly used as a catalyst for alkylation and polymerization reactions.

Application

Ethanesulfonic acid is used as an esterification catalyst in the pre-treatment of ACPO (acidic crude palm oil) to produce biodiesel.

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1B

Storage Class Code

8A - Combustible, corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

235.4 °F - closed cup

Flash Point(C)

113 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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The Action of Sulfuric Acid, Ethanesulfonic Acid and Chlorosulfonic Acid on Aliphatic Hydrocarbons
Gordon GS and Burwell RL
Journal of the American Chemical Society, 71(7), 2355-2359 (1949)
Advanced fuel cell catalysts: sulfonation of carbon-supported catalysts using 2-aminoethanesulfonic acid
Xu Z, et al.
Electrochemical and Solid-State Letters, 6(9), A171-A171 (2003)
Electrolytic Reduction of Perrhenate. I. Studies in Perchloric, Ethanesulfonic, Trifluoroacetic and Hydrochloric Acids.
Hindman JC and Wehner P.
Journal of the American Chemical Society, 75(12), 2869-2872 (1953)
Anne N Reid et al.
Applied and environmental microbiology, 74(5), 1598-1612 (2008-01-15)
In order to cause disease, the food- and waterborne pathogen Campylobacter jejuni must face the extreme acidity of the host stomach as well as cope with pH fluctuations in the intestine. In the present study, C. jejuni NCTC 11168 was
Adeeb Hayyan et al.
Bioresource technology, 102(20), 9564-9570 (2011-08-23)
An industrial grade acidic crude palm oil (ACPO) pre-treatment process was carried out using ethanesulfonic acid (ESA) as a catalyst in the esterification reaction. ESA was used in different dosages to reduce free fatty acid (FFA) to a minimum level

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