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2-METHYLPENTANE ICSC: 1262
Date of Peer Review: March 1995

Isohexane
Dimethylpropylmethane
CAS # 107-83-5 C6H14 / CH3CH(CH3)(CH2)2CH3
RTECS # SA2985000 Molecular mass: 86.2
UN # 1208 (hexanes)
EC #
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Highly flammable.
NO open flames, NO sparks, and NO smoking.
Powder, AFFF, foam, carbon dioxide.
EXPLOSION Vapour/air mixtures are explosive.
Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent build-up of electrostatic charges (e.g., by grounding). Do NOT use compressed air for filling, discharging, or handling. Use non-sparking handtools.
In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE


Inhalation
Ventilation, local exhaust, or breathing protection.
Fresh air, rest.
Skin
Protective gloves.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes
Safety spectacles.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion
Do not eat, drink, or smoke during work.
Rinse mouth.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Ventilation. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT wash away into sewer.
EU Classification
UN Classification
UN Hazard Class: 3
UN Pack Group: II
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-30S1208 or 30GF1-I+II
NFPA Code: H1; F3; R0;
Fireproof. Separated from strong oxidants.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 2004

SEE IMPORTANT INFORMATION ON BACK


2-METHYLPENTANE ICSC: 1262
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID, WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:
The vapour is heavier than air and may travel along the ground; distant ignition possible. As a result of flow, agitation, etc., electrostatic charges can be generated.

CHEMICAL DANGERS:
Reacts violently with oxidants causing fire and explosion hazard. Attacks plastic.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: (as hexane isomers) 500 ppm as TWA; 1000 ppm as STEL; (ACGIH 2004).
MAK: 200 ppm, 720 mg/m; Peak limitation category: II(2); Pregnancy risk group: IIc; (DFG 2004).
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its vapour and through the skin.

INHALATION RISK:
A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20C.

PHYSICAL PROPERTIES
Boiling point: 60C
Melting point: -153C
Relative density (water = 1): 0.65
Solubility in water: none
Vapour pressure, kPa at 20C: 23
Relative vapour density (air = 1): 3.0
Flash point: -32C c.c.
Auto-ignition temperature: 264C
Explosive limits, vol% in air: 1.0-7
ENVIRONMENTAL DATA

NOTES
Card has been partly updated in April 2005. See sections Occupational Exposure Limits, Emergency Response.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 2004