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BIPHENYL
ICSC: 0106
Peer-Review Status: 10.10.2006 Validated
Diphenyl
Phenylbenzene
Dibenzene 
CAS #: 92-52-4 RTECS #: DU8050000
UN #: 3077
EC #: 601-042-00-8
EINECS #: 202-163-5
    Formula: C12H10 / C6H5C6H5
Molecular mass: 154.2

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible.  NO open flames.  Use water spray, foam, powder, carbon dioxide. 
EXPLOSION Finely dispersed particles form explosive mixtures in air.  Closed system, ventilation, explosion-proof electrical equipment and lighting. Prevent deposition of dust. Prevent build-up of electrostatic charges (e.g., by grounding).   
 
EXPOSURE   PREVENT DISPERSION OF DUST!   
Inhalation Cough. Nausea. Vomiting.  Avoid inhalation of dust and mist. 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 goggles or eye protection in combination with breathing protection if powder.  Rinse with plenty of water for several minutes (remove contact lenses if easily possible). 
Ingestion Further see Inhalation.  Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. 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 covered containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.  Do not transport with food and feedstuffs. 
EC Classification
Symbol: Xi, N; R: 36/37/38-50/53; S: (2)-23-60-61 
UN Classification
UN Hazard Class: 9; UN Pack Group: III 
GHS Classification
Signal: Warning
Causes eye irritation
May cause damage to liver and nervous system through prolonged or repeated exposure if inhaled
Very toxic to aquatic life 
cancer;health hazenviro;aqua

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-90GM7-III.
NFPA Code: H1; F1; R0. 
Separated from food and feedstuffs and oxidants. Provision to contain effluent from fire extinguishing. Store in an area without drain or sewer access. 

IMPORTANT DATA
Physical State; Appearance
WHITE CRYSTALS OR FLAKES WITH CHARACTERISTIC ODOUR. 

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air. 

Chemical dangers
Reacts with oxidants. 

Occupational exposure limits
TLV: 0.2ppm as TWA; (ACGIH 2006).
MAK: Carcinogen category: 3B; Skin absorption (H); (DFG 2006). 

Routes of exposure
The substance can be absorbed into the body by inhalation, through the skin and by ingestion. 

Inhalation risk
A harmful concentration of airborne particles can be reached quickly when dispersed. 

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

Effects of long-term or repeated exposure
The substance may have effects on the liver and nervous system. This may result in impaired functions. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 256°C
Melting point: 70°C
Relative density (water = 1): 1.04
Solubility in water, g/100ml at 20°C: 0.0004
Vapour pressure, Pa at 25°C: 1.19
Relative vapour density (air = 1): 5.3
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.0
Flash point: 113°C c.c.
Auto-ignition temperature: 540°C
Explosive limits, vol% in air: 0.6 (at 111°C) - 5.8 (at 166°C)
Octanol/water partition coefficient as log Pow: 3.16/4.09  
The substance is very toxic to aquatic organisms. Bioaccumulation of this chemical may occur along the food chain, for example in plants. It is strongly advised not to let the chemical enter into the environment. 

NOTES
Do NOT take working clothes home.
Card has been partially updated in November 2008: see Packaging & labelling. 

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
       BIPHENYL (JECFA Evaluation)
       Biphenyl (CICADS 6, 1999)