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538701

2-Ethylhexanoic acid

≥99%

Synonym(s):

2-Ethylcaproic acid

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About This Item

Linear Formula:
CH3(CH2)3CH(C2H5)CO2H
CAS Number:
149-57-5
Molecular Weight:
144.21
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
24878352
EC Number:
205-743-6
Beilstein/REAXYS Number:
1750468
MDL number:
MFCD00002675
Assay:
≥99%
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vapor density

4.98 (vs air)

Quality Segment

200

vapor pressure

<0.01 mmHg ( 20 °C), 10 mmHg ( 115 °C)

assay

≥99%

autoignition temp.

699 °F

expl. lim.

1.04 %, 135 °F, 8.64 %, 188 °F

refractive index

n20/D 1.425 (lit.)

bp

228 °C (lit.)

density

0.903 g/mL at 25 °C (lit.)

functional group

carboxylic acid

SMILES string

CCCCC(CC)C(O)=O

InChI

1S/C8H16O2/c1-3-5-6-7(4-2)8(9)10/h7H,3-6H2,1-2H3,(H,9,10)

InChI key

OBETXYAYXDNJHR-UHFFFAOYSA-N

General description

2-Ethylhexanoic acid (EHXA, 2-EHA) is an industrially important aliphatic carboxylic acid. It is widely employed as a stabilizer and a wood preservative.
It has various industrial applications, such as:
  • coolant in automotives
  • synthetic lubricant
  • wetting agent
  • co-solvent
  • drying of paints
  • defoaming agent in pesticides

Application

  • A review of the environmental fate and aquatic effects of a series of C4 and C8 oxo-process chemicals.: This review assesses the environmental impact of C4 and C8 oxo-process chemicals, including 2-Ethylhexanoic acid, detailing their degradation, persistence, and effects on aquatic ecosystems (Staples, 2001).

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pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H360D

Hazard Classifications

Repr. 1B

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 1

flash_point_f

237.2 °F - closed cup

flash_point_c

114 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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