Hexahydromethylphenol
Hexahydrocresol
C7H14O
Molecular mass: 114.2
ICSC # 0292
CAS # 25639-42-3
RTECS # GW0175000
UN # 2617
EC # 603-010-00-9
|
|
Types of Hazard/ Exposure
|
Acute Hazards/ Symptoms
|
Prevention
|
First Aid/
Fire Fighting
|
|
FIRE
|
Flammable.
|
NO open flames, NO sparks, and NO smoking.
|
AFFF,
alcohol-resistant foam,
dry powder,
carbon dioxide.
|
|
Explosion
|
Above 41°C explosive vapour/air mixtures may be formed.
|
Above 41°C use a closed system, ventilation.
|
In case of fire: keep drums, etc., cool by spraying with water.
|
|
|
|
Exposure
|
|
|
|
|
•Inhalation
|
Cough.
Headache.
|
Ventilation.
|
Fresh air, rest.
Refer for medical attention.
|
|
•Skin
|
Redness.
|
Protective gloves.
|
Remove contaminated clothes.
Rinse and then wash skin with water and soap.
|
|
•Eyes
|
Redness.
|
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.
Refer for medical attention.
|
|
Spillage Disposal
|
Storage
|
Packaging & Labelling
|
Remove all ignition sources.
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.
Personal protection:
filter respirator for organic gases and vapours.
|
Fireproof.
|
Note: C
Xn symbol
R: 20
S: 2-24/25
UN Hazard Class: 3
UN Packing Group: III
|
|
|
|
Important Data
|
Physical State; Appearance:
COLOURLESS
VISCOUS LIQUID
, WITH CHARACTERISTIC ODOUR.
Physical Dangers:
Chemical Dangers:
Occupational Exposure Limits:
TLV: 50 ppm as TWA; (ACGIH 2004).
MAK: IIb (not established but data is available) (DFG 2004).
OSHA PEL: TWA 100 ppm (470 mg/m3)
NIOSH REL: TWA 50 ppm (235 mg/m3)
NIOSH IDLH: 500 ppm See: 25639423
|
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 not or will only very slowly be reached on evaporation of this substance at 20°C.
Effects of Short-Term Exposure:
The substance
is mildly irritating to
the eyes
and
the skin
.
Exposure at high levels of the vapour may result in irritation of eyes and upper respiratory tract.
Effects of Long-Term or Repeated Exposure:
Repeated or prolonged contact with skin may cause dermatitis.
|
|
Physical
Properties
|
Boiling point: 174°C
Melting point: < -50°C
Relative density (water = 1): 0.92
Solubility in water, g/100 ml at 20°C: 3-4
Vapour pressure, kPa at 30°C: 0.20
|
Relative vapour density (air = 1): 3.9
Flash point:
41°C c.c.
Auto-ignition temperature: 296°C
Octanol/water partition coefficient as log Pow: 2.05
|
|
Environmental
Data
|
|
|
N O T E S
|
This substance is a mixture of three isomers (ortho, meta and para), with the meta and para forms predominating.
The odour warning when the exposure limit value is exceeded is insufficient.
Card has been partly updated in October 2004. See sections Occupational Exposure Limits, EU classification, Emergency Response.
Transport Emergency Card: TEC (R)-30GF1-III
|
|
|
ADDITIONAL INFORMATION
|
|
|
|
ICSC: 0292
|
METHYLCYCLOHEXANOL (MIXED ISOMERS)
|
|
(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.
|
|
|