4-(1,1-Dimethylethyl)phenol
1-Hydroxy-4-tert-butylbenzene
C10H14O / HOC6H4C(CH3)3
Molecular mass: 150.2
ICSC # 0637
CAS # 98-54-4
RTECS # SJ8925000
UN # 2430
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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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Combustible.
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NO open flames.
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Alcohol-resistant foam,
powder,
carbon dioxide.
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Explosion
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Exposure
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PREVENT DISPERSION OF DUST!
STRICT HYGIENE!
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•Inhalation
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Cough.
Sore throat.
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Local exhaust or breathing protection.
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Fresh air, rest.
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•Skin
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Redness.
Pain.
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Protective gloves.
Protective clothing.
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Remove contaminated clothes.
Rinse and then wash skin with water and soap.
Refer for medical attention.
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•Eyes
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Redness.
Pain.
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Safety goggles
or
eye protection in combination with breathing protection.
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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.
Vomiting.
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Give one or two glasses of water to drink.
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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Sweep spilled substance into sealable containers; if appropriate, moisten first to prevent dusting.
Carefully collect remainder,
then remove to safe place.
Personal protection: A/P2 filter respirator for organic vapour and harmful dust.
Do NOT let this chemical enter the environment.
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Well closed.
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Marine pollutant.
UN Hazard Class: 8
UN Packing Group: III
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Important Data
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Physical State; Appearance:
WHITE
,
HYGROSCOPIC
FLAKES
Physical Dangers:
Chemical Dangers:
Occupational Exposure Limits:
TLV not established.
MAK: 0.08 ppm, 0.5 mg/m3
Peak limitation category: II(2);
skin absorption (H); sensitization of skin (Sh);
Pregnancy risk group: D;
(DFG 2006).
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its aerosol
and
through the skin.
Inhalation Risk:
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.
Effects of Short-Term Exposure:
The substance
is severely irritating to
the eyes
,
the skin
,
and
the respiratory tract
.
The substance may cause effects on the skin
, resulting in depigmentation.
Effects of Long-Term or Repeated Exposure:
Repeated or prolonged contact with skin may cause dermatitis.
Repeated or prolonged contact may cause skin sensitization.
The substance may have effects on the
liver
,
spleen
,
thyroid
and
nervous system
, resulting in
impaired functions
.
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Physical
Properties
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Boiling point: 237°C
Melting point: 98°C
Density: 0.9
g/cm3
Solubility in water:
none
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Vapour pressure, Pa at 50°C: 30
Flash point:
115°C o.c.
Octanol/water partition coefficient as log Pow: 2.4-3.4
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Environmental
Data
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The substance is toxic to aquatic organisms.
Bioaccumulation of this chemical may occur in fish.
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N O T E S
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Depending on the degree of exposure, periodic medical examination is suggested.
Transport Emergency Card: TEC (R)-80GC4-II+III
Card has been partially updated in October 2005: see Occupational Exposure Limits,
Card has been partially updated in August 2007: see Ingestion First Aid, Occupational Exposure Limits.
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ADDITIONAL INFORMATION
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ICSC: 0637
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para-tert-BUTYLPHENOL
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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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