2-Ethylcaproic acid
3-Heptanecarboxylic acid
C8H16O2 / CH3(CH2)3CH(C2H5)COOH
Molecular mass: 144.2
ICSC # 0477
CAS # 149-57-5
RTECS # MO7700000
EC # 607-230-00-6
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Combustible.
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NO open flames.
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Powder, water spray, foam, carbon dioxide.
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Explosion
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Exposure
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AVOID ALL CONTACT!
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•Inhalation
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Cough.
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Local exhaust or breathing protection.
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Fresh air, rest.
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•Skin
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Redness.
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Protective gloves.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
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•Eyes
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Redness.
Pain.
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Safety goggles.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Abdominal pain.
Burning sensation.
Diarrhoea.
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Give plenty of water to drink.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Personal protection: filter respirator for organic gases and vapours.
Collect leaking and spilled liquid in sealable containers as far as possible.
Absorb remaining liquid in sand or inert absorbent and remove to safe place.
Do NOT absorb in saw-dust or other combustible absorbents.
Do NOT let this chemical enter the environment.
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Separated from
strong oxidants.
Store in an area without drain or sewer access.
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Xn symbol
R: 63
S: 2-36/37
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Important Data
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Physical State; Appearance:
COLOURLESS LIQUID
, WITH CHARACTERISTIC ODOUR.
Physical Dangers:
Chemical Dangers:
The substance is a strong reducing agent and reacts with oxidants.
The substance decomposes
on heating
producing
irritating fumes
.
Occupational Exposure Limits:
TLV: (Inhalable aerosol and vapor) 5 mg/m3 as TWA; (ACGIH 2005).
MAK: IIb (not established but data is available) (DFG 2004).
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its vapour,
through the skin
and
by ingestion.
Inhalation Risk:
A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C; on spraying or dispersing, however, much faster.
Effects of Short-Term Exposure:
The substance
is irritating to
the eyes
,
the skin
and
the respiratory tract
.
Effects of Long-Term or Repeated Exposure:
Animal tests show that this substance possibly causes toxicity to human reproduction or development.
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Physical
Properties
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Boiling point: 227°C
Melting point: -59°C
Relative density (water = 1): 0.90
Solubility in water, g/100 ml: 0.14
(very poor)
Vapour pressure, Pa at 20°C: 4
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Relative vapour density (air = 1): 5
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00
Flash point: 118°C o.c.
Auto-ignition temperature: 371°C
Explosive limits, vol% in air: 0.8-6
Octanol/water partition coefficient as log Pow: 2.64
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Environmental
Data
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The substance is harmful to aquatic organisms.
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N O T E S
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ADDITIONAL INFORMATION
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ICSC: 0477
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2-ETHYLHEXANOIC ACID
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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