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o-TERPHENYL ICSC: 1525
Date of Peer Review: April 2004

1,2-Diphenylbenzene
o-Diphenylbenzene
CAS # 84-15-1 C18H14
RTECS # WZ6472000 Molecular mass: 230.31
UN #
EC #
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Combustible.
NO open flames.
Water spray, dry powder, carbon dioxide.
EXPLOSION


EXPOSURE


Inhalation Cough. Sore throat.
Local exhaust or breathing protection.
Fresh air, rest. Refer for medical attention.
Skin
Protective gloves.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes Redness. Pain.
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 take to a doctor.
Ingestion Diarrhoea. Nausea. Vomiting.
Do not eat, drink, or smoke during work.
Rinse mouth. Give plenty of water to drink. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Vacuum spilled material OR sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment. Personal protection: P2 filter respirator for harmful particles.
EU Classification
UN Classification

EMERGENCY RESPONSE STORAGE
NFPA Code: H0; F1; R0;

IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 1999

SEE IMPORTANT INFORMATION ON BACK
o-TERPHENYL ICSC: 1525
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS TO LIGHT-YELLOW CRYSTALS

CHEMICAL DANGERS:
On combustion, forms toxic fumes including carbon monoxide.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: (as terphenyls) 5 mg/m; (Ceiling value); (ACGIH 2004).
MAK not established.
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by ingestion and by inhalation.

INHALATION RISK:
Evaporation at 20C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the eyes and the respiratory tract.

PHYSICAL PROPERTIES
Boiling point: 332C
Melting point: 56.2C
Relative density (water = 1): 1.1
Solubility in water: none
Vapour pressure, Pa at 25C: 0.0033
Relative vapour density (air = 1): 7.9
Relative density of the vapour/air-mixture at 20C (air = 1): <0.9
Flash point: 163C o.c.
Octanol/water partition coefficient as log Pow: 5.5
ENVIRONMENTAL DATA
Bioaccumulation of this chemical may occur in fish.
NOTES
The occupational exposure limit value should not be exceeded during any part of the working exposure.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 1999