International Chemical Safety Cards

para-tert-BUTYLTOLUENE ICSC: 1068

para-tert-Butyl toluene
PTBT
4-tert-Butyltoluene
1-Methyl-4-tert-butylbenzene
C11H16
Molecular mass: 148.3
CAS # 98-51-1
RTECS # XS8400000
ICSC # 1068
UN # 2667
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Combustible.
NO open flames.
Powder, AFFF, foam, carbon dioxide.
EXPLOSION Above 67°C explosive vapour/air mixtures may be formed.
Above 67°C closed system, ventilation.

EXPOSURE


  • INHALATION
    		• Cough, drowsiness, headache, laboured breathing, nausea, vomiting, weakness, metallic taste.
    		Ventilation, local exhaust, or breathing protection.
    		Fresh air, rest, and refer for medical attention.
  • SKIN
    		• Redness, pain.
    		Protective gloves.
    		Remove contaminated clothes, rinse skin with plenty of water or shower, and refer for medical attention if irritation persists.
  • EYES
    		• Redness, pain.
    		Safety goggles.
    		First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
  • INGESTION
    		• Sore throat (further see Inhalation).
    		Do not eat, drink, or smoke during work.
    		Rinse mouth, give plenty of water to drink, induce vomiting (ONLY IN CONSCIOUS PERSONS!), and refer for medical attention.
    SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
    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.
    		Separated from strong oxidants.

    UN Haz Class: 6.1
    UN Pack Group: III
    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 1068 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1990 No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and IDLH values.

    International Chemical Safety Cards

    para-tert-BUTYLTOLUENE ICSC: 1068

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    PHYSICAL STATE; APPEARANCE:
     CLEAR, COLOURLESS LIQUID , WITH CHARACTERISTIC ODOUR.

    PHYSICAL DANGERS:

    CHEMICAL DANGERS:
     Upon heating, toxic fumes are formed. Reacts violently with strong oxidants, causing fire and explosion hazard.

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
     TLV: 10 ppm; 61 mg/m3 (as TWA); 20 ppm; 121 mg/m3 (as STEL) (ACGIH 1992-1993)
    OSHA PEL: TWA 10 ppm (60 mg/m3)
    NIOSH REL: TWA 10 ppm (60 mg/m3) ST 20 ppm (120 mg/m3)
    NIOSH IDLH: 100 ppm


    		ROUTES OF EXPOSURE:
     The substance can be absorbed into the body by inhalation and by ingestion.

    INHALATION RISK:
     A harmful contamination of the air will be reached rather slowly on evaporation of this substance at 20°C.

    EFFECTS OF SHORT-TERM EXPOSURE:
     The substance irritates the eyes, the skin, and the respiratory tract. The substance may cause effects on the central nervous system.

    EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
     The liquid defats the skin. The substance may have effects on the liver and kidneys.
    PHYSICAL
    PROPERTIES
    Boiling point: 193°C
    Melting point: -52°C
    Relative density (water = 1): 0.86
    Solubility in water: none
    Vapour pressure, Pa at 25°C: 87
    		Relative vapour density (air = 1): 5.1
    Relative density of the vapour/air-mixture at 20°C (air = 1): 1.004
    Flash point: 67°C
    Octanol/water partition coefficient as log Pow: 4.82
    ENVIRONMENTAL
    DATA
    NOTES
    Transport Emergency Card: TEC (R)-153
    ADDITIONAL INFORMATION


    ICSC: 1068 para-tert-BUTYLTOLUENE
    © IPCS, CEC, 1990
    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 IDLH values.