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BUTYLATED HYDROXYTOLUENEICSC: 0841
March 1999
CAS #: 128-37-02,6-Di-tert-butyl-4-methylphenol
2,6-Di-tert-butyl-p-cresol
BHT
EINECS #: 204-881-4

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible.    NO open flames.    Use water spray, powder, foam, carbon dioxide.  In case of fire: keep drums, etc., cool by spraying with water. 

 PREVENT DISPERSION OF DUST!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Cough. Sore throat.  Use local exhaust or breathing protection.  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. Pain.  Wear safety spectacles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal pain. Confusion. Dizziness. Nausea. Vomiting.  Do not eat, drink, or smoke during work.  Rinse mouth. Rest. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Sweep spilled substance into covered containers. Carefully collect remainder. Then store and dispose of according to local regulations. Do NOT let this chemical enter the environment. Personal protection: P2 filter respirator for harmful particles. 

According to UN GHS Criteria

 

Transportation
UN Classification
 

STORAGE
Separated from strong oxidants and strong bases. Well closed. 
PACKAGING
 
BUTYLATED HYDROXYTOLUENE ICSC: 0841
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS-TO-PALE-YELLOW CRYSTALS OR POWDER. 

Physical dangers
 

Chemical dangers
Decomposes on burning. Decomposes on contact with oxidizing materials. 

Formula: C15H24O / C6H2(OH)(CH3)(C(CH3)3)2
Molecular mass: 220.34
Boiling point: 265°C
Melting point: 70°C
Density: 1.03-1.05 g/cm³
Solubility in water, g/100ml at 25°C: 0.00006
Vapour pressure, Pa at 20°C: 1.3
Relative vapour density (air = 1): 7.6
Flash point: 127°C c.c.
Octanol/water partition coefficient as log Pow: 5.1  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. 

Effects of short-term exposure
The substance is irritating to the eyes and skin. 

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 long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis. The substance may have effects on the liver. 


Occupational exposure limits
TLV: 2 mg/m3, ppm, as TWA; A4 (not classifiable as a human carcinogen).
MAK: (inhalable fraction): 10 mg/m3; peak limitation category: II(4); carcinogen category: 4; pregnancy risk group: C 

ENVIRONMENT
The substance is harmful to aquatic organisms. 

NOTES
 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations
       Butylated hydroxytoluene (FAO Nutrition Meetings Report Series 38a)
       Butylated hydroxytoluene (FAO Nutrition Meetings Report Series 40abc)
       Butylated hydroxytoluene (WHO Food Additives Series 5)
       Butylated hydroxytoluene (WHO Food Additives Series 10)
       Butylated hydroxytoluene (WHO Food Additives Series 21)
       Butylated hydroxytoluene (WHO Food Additives Series 35)
       BUTYLATED HYDROXYTOLUENE (JECFA Evaluation)