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HEXYLENE GLYCOL ICSC: 0660
Date of Peer Review: May 2003

2-Methyl-2,4-pentanediol
2,4-Dihydroxy-2-methylpentane
CAS # 107-41-5 C6H14O2 / (CH3)2COHCH2CHOHCH3
RTECS # SA0810000 Molecular mass: 118.2
UN #
EC # 603-053-00-3
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Combustible.
NO open flames.
Powder, alcohol-resistant foam, water spray, carbon dioxide.
EXPLOSION Above 96C explosive vapour/air mixtures may be formed.
Above 96C use a closed system, ventilation, and explosion-proof electrical equipment.
In case of fire: keep drums, etc., cool by spraying with water.
EXPOSURE


Inhalation Sore throat. Cough.
Ventilation, local exhaust, or breathing protection.
Fresh air, rest.
Skin Dry skin. Redness.
Protective gloves.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
Eyes Redness. Pain.
Safety goggles.
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. Give plenty of water to drink. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Ventilation. Collect leaking liquid in covered containers. Wash away spilled liquid with plenty of water. (Extra personal protection: filter respirator for organic gases and vapours.)
EU Classification
Symbol: Xi
R: 36/38
S: (2)
UN Classification

EMERGENCY RESPONSE STORAGE
NFPA Code: H2; F1; R0
Separated from strong oxidants, strong acids.
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 1999

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HEXYLENE GLYCOL ICSC: 0660
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID, WITH CHARACTERISTIC ODOUR.

CHEMICAL DANGERS:
Reacts with strong oxidants and strong acids.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 25 ppm, 121 mg/m; (Ceiling value); (ACGIH 2003).
MAK: 10 ppm, 49 mg/m; Peak limitation category: I(2); Pregnancy risk group: IIc; (DFG 2002).
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol.

INHALATION RISK:
A harmful contamination of the air will not or will only very slowly be reached on evaporation of this substance at 20C.

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:
Repeated or prolonged contact with skin may cause dermatitis.
PHYSICAL PROPERTIES
Boiling point: 198C
Melting point: -50C
Relative density (water = 1): 0.92
Solubility in water: miscible
Vapour pressure, Pa at 20C: 6.7
Relative vapour density (air = 1): 4.1
Relative density of the vapour/air-mixture at 20C (air = 1): 1
Flash point: 96C o.c.
Auto-ignition temperature: 306C
Explosive limits, vol% in air: 1.2-8.1
Octanol/water partition coefficient as log Pow: 0.58
ENVIRONMENTAL DATA

NOTES
The occupational exposure limit value should not be exceeded during any part of the working exposure. Diolane and Pinakon are trade names.
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 1999