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para-tert-BUTYLPHENOL
ICSC: 0637
Peer-Review Status: 10.04.2000 Validated
4-(1,1-Dimethylethyl)phenol
1-Hydroxy-4-tert-butylbenzene 
CAS #: 98-54-4 RTECS #: SJ8925000
UN #: 2430
EINECS #: 202-679-0
 		    Formula: C10H14O / HOC6H4C(CH3)3
Molecular mass: 150.2

TYPES OF
HAZARD /
EXPOSURE 		ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible.  NO open flames.  Use alcohol-resistant foam, powder, carbon dioxide. 
EXPLOSION      
 
EXPOSURE   PREVENT DISPERSION OF DUST! STRICT HYGIENE!   
Inhalation Cough. Sore throat.  Use local exhaust or breathing protection.  Fresh air, rest. 
Skin Redness. Pain.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention . 
Eyes Redness. Pain.  Wear safety goggles or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Nausea. Vomiting.  Do not eat, drink, or smoke during work.  Rinse mouth. Give one or two glasses of water to drink. Rest. Refer for medical attention . 

SPILLAGE DISPOSAL
 		PACKAGING & LABELLING
Personal protection: filter respirator for organic gases and particulates adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into sealable containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.  Marine pollutant. 
EC Classification
 
UN Classification
UN Hazard Class: 8; UN Pack Group: III 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-80GC4-II+III.  Well closed. 

IMPORTANT DATA
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); Pregnancy risk group: D; Skin absorption (H); Sensitization of skin (SH); (DFG 2006). 

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, skin and respiratory tract. The substance may cause effects on the skin. This may result 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. This may result in impaired functions. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 237°C
Melting point: 98°C
Density: 0.9 g/cm³
Solubility in water: none
Vapour pressure, Pa at 50°C: 30
Flash point: 115°C o.c.
Octanol/water partition coefficient as log Pow: 2.4/3.4   		The substance is toxic to aquatic organisms. Bioaccumulation of this chemical may occur in fish. 

NOTES
Depending on the degree of exposure, periodic medical examination is suggested.
Card has been partially updated in October 2005: see Occupational Exposure Limits, Emergency Response.
Card has been partially updated in August 2007: see Ingestion First Aid, Occupational Exposure Limits. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety 		WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information. 
    See Also:
       Toxicological Abbreviations