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NEODECANOIC ACID

ICSC: 1699

2,2-Dimethyl octanoic acid
2,2,3,5-Tetramethylhexanoic acid
2,4-Dimethyl-2-isopropylpentanoic acid
2,5-Dimethyl-2-ethylhexanoic acid
C10H20O2
Molecular mass: 172.3
ICSC # 1699 		CAS # 26896-20-8
November 11, 2008 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Combustible.
NO open flames.
water spray, foam, powder, carbon dioxide
EXPLOSION Above 94°C explosive vapour/air mixtures may be formed.
Above 94°C use a closed system, ventilation.
In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE
PREVENT GENERATION OF MISTS!

•INHALATION
Ventilation.
Fresh air, rest.
•SKIN
Protective gloves.
Rinse and then wash skin with water and soap.
•EYES Redness.
Safety spectacles .
First rinse with plenty of water (remove contact lenses if easily possible).
•INGESTION
Do not eat, drink, or smoke during work.
Do NOT induce vomiting. Seek medical attention if you feel unwell.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Personal protection: filter respirator for organic gases and vapours. Do NOT let this chemical enter the environment. Collect leaking liquid in sealable plastic containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place.
Separated from strong oxidants. Ventilation along the floor. Store in an area without drain or sewer access.

Signal: Warning
May be harmful if swallowed
Causes eye irritation
Harmful to aquatic life
ICSC: 1699 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

NEODECANOIC ACID

ICSC: 1699

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D

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PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID

PHYSICAL DANGERS:


CHEMICAL DANGERS:
Reacts with strong oxidants, causing fire and explosion hazard. Attacks metal.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
MAK not established.


ROUTES OF EXPOSURE:
(p2); Harmful if swallowed. 5.4 Repeated dose toxicity (p17); oral feed causes hepatotoxic changes etc.

INHALATION RISK:
No indication can be given about the rate in which a harmful concentration of this substance in the air is reached.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the eyes . If swallowed the substance may cause vomiting, and could result in aspiration pneumonitis. risk. Viscosity at 20 °C = 45 mm2/s (Test method: ASTM D445)

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact with skin may cause dermatitis. cision based on log Pow

PHYSICAL
PROPERTIES

Boiling point: 243-253°C
Melting point: -39°C
Relative density (water = 1): 0.91
Solubility in water, g/100 ml at 25°C: 0.025
(very poor)
Vapour pressure, Pa at 50°C: 29
(calculated)
Relative vapour density (air = 1): 5.9
94°C c.c.
Octanol/water partition coefficient as log Pow: 3.6 (calculated)
Viscosity, mm2/s at 20 °C: 45

ENVIRONMENTAL
DATA

The substance is harmful to aquatic organisms.

N O T E S

Neodecanoic acid, with CAS number 26896-20-8, includes different isomers. Some are listed under the synonyms. Health effects of exposure to the substance have not been investigated adequately. Refer for medical attention if breathing difficulties and/or fever develop.

ADDITIONAL INFORMATION



ICSC: 1699 NEODECANOIC ACID
(C) IPCS, CEC, 1994
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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