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NIOSH

HEXYLENE GLYCOL

ICSC: 0660

2-Methyl-2,4-pentanediol
2,4-Dihydroxy-2-methylpentane
C6H14O2 / (CH3)2COHCH2CHOHCH3
Molecular mass: 118.2
ICSC # 0660 		CAS # 107-41-5
RTECS # SA0810000
EC # 603-053-00-3
August 05, 2003 Validated

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 96°C explosive vapour/air mixtures may be formed.
Above 96°C 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 one or two glasses of water to drink. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

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.)
Separated from strong oxidants, strong acids.

Xi symbol
R: 36/38
S: (2)
ICSC: 0660 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.

HEXYLENE GLYCOL

ICSC: 0660

I

M

P

O

R

T

A

N

T


D

A

T

A

PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID , WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:


CHEMICAL DANGERS:
Reacts with strong oxidants and strong acids .

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 25 ppm, 121 mg/m3; (Ceiling value); (ACGIH 2003).
MAK: 10 ppm, 49 mg/m3;
Peak limitation category: I(2); Pregnancy risk group: D;
(DFG 2006).
OSHA PEL†: none
NIOSH REL: C 25 ppm (125 mg/m3)
NIOSH IDLH: N.D. See: IDLH INDEX


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 20°C.

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: 198°C
Melting point: -50°C
Relative density (water = 1): 0.92
Solubility in water:
miscible
Vapour pressure, Pa at 20°C: 6.7
Relative vapour density (air = 1): 4.1
Relative density of the vapour/air-mixture at 20°C (air = 1): 1
Flash point:
96°C o.c.
Auto-ignition temperature: 306°C
Explosive limits, vol% in air: 1.2-8.1
Octanol/water partition coefficient as log Pow: 0.58

ENVIRONMENTAL
DATA


N O T E S

The occupational exposure limit value should not be exceeded during any part of the working exposure. Diolane and Pinakon are trade names.
NFPA Code: H2; F1; R0
Card has been partially updated in August 2007: see Ingestion First Aid, Occupational Exposure Limits.

ADDITIONAL INFORMATION



ICSC: 0660 HEXYLENE GLYCOL
(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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