Hexahydrotoluene
Cyclohexylmethane
C7H14 / C6H11CH3
Molecular mass: 98.21
ICSC # 0923
CAS # 108-87-2
RTECS # GV6125000
UN # 2296
EC # 601-018-00-7
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Highly flammable.
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NO open flames, NO sparks, and NO smoking.
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Powder
,
foam
,
carbon dioxide
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Explosion
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Vapour/air mixtures are explosive.
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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.
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In case of fire: keep drums, etc., cool by spraying with water.
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Exposure
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PREVENT GENERATION OF MISTS!
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•Inhalation
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Dizziness.
Drowsiness.
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Ventilation, local exhaust, or breathing protection.
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Fresh air, rest.
Artificial respiration if indicated.
Refer for medical attention.
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•Skin
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Dry skin.
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Protective gloves.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
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•Eyes
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Redness.
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Safety spectacles.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Nausea.
(Further see Inhalation).
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Rest.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Ventilation.
Collect leaking and spilled liquid in sealable containers as far as possible.
Absorb remaining liquid in dry sand or inert absorbent and remove to safe place.
Do NOT wash away into sewer.
(Extra personal protection: filter respirator for organic gases and vapours).
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Fireproof.
Separated from
strong oxidants.
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F symbol
Xn symbol
N symbol
R: 11-38-51/53-65-67
S: 2-9-16-33-61-62
UN Hazard Class: 3
UN Packing Group: II
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Important Data
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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 strong oxidants,
causing fire and explosion hazard.
Occupational Exposure Limits:
TLV: 400 ppm; 1610 mg/m3 (ACGIH 1996).
MAK: 200 ppm, 810 mg/m3
Peak limitation category: II(2) Pregnancy risk group: D
(DFG 2008).
OSHA PEL: TWA 500 ppm (2000 mg/m3)
NIOSH REL: TWA 400 ppm (1600 mg/m3)
NIOSH IDLH: 1200 ppm LEL See: 108872
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its vapour and
by ingestion.
Inhalation Risk:
Effects of Short-Term Exposure:
The substance
irritates
the eyes and
the skin.
Swallowing the liquid may cause aspiration into the lungs with the risk of chemical pneumonitis.
The substance may cause effects on the central nervous system.
Exposure could cause lowering of consciousness.
Effects of Long-Term or Repeated Exposure:
The liquid defats the skin.
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Physical
Properties
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Boiling point: 101°C
Melting point: -126.7°C
Relative density (water = 1): 0.8
Solubility in water: none
Vapour pressure, kPa at 25°C: 5.73
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Relative vapour density (air = 1): 3.4
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.1
Flash point: -6°C o.c.
Auto-ignition temperature: 258°C
Explosive limits, vol% in air: 1.2-6.7
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Environmental
Data
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N O T E S
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Transport Emergency Card: TEC (R)-514
NFPA Code: H2; F3; R0;
Card has been partially updated in November 2008: see Occupational Exposure Limits,
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ADDITIONAL INFORMATION
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ICSC: 0923
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METHYLCYCLOHEXANE
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(C) IPCS, CEC, 1994
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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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