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BIPHENYLICSC: 0106
October 2006
CAS #: 92-52-4Diphenyl
Phenylbenzene
Dibenzene
UN #: 3077
EINECS #: 202-163-5

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible.  Finely dispersed particles form explosive mixtures in air.  NO open flames.  Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust. Prevent build-up of electrostatic charges (e.g., by grounding).  Use water spray, foam, powder, carbon dioxide.   

 PREVENT DISPERSION OF DUST!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
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 CLASSIFICATION & 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. 

According to UN GHS Criteria

cancer;health hazenviro;aqua
WARNING
Causes eye irritation
May cause damage to liver and nervous system through prolonged or repeated exposure if inhaled
Very toxic to aquatic life 

Transportation
UN Classification
UN Hazard Class: 9; UN Pack Group: III 

STORAGE
Separated from food and feedstuffs and oxidants. Provision to contain effluent from fire extinguishing. Store in an area without drain or sewer access. 
PACKAGING
Do not transport with food and feedstuffs. 
BIPHENYL ICSC: 0106
PHYSICAL & CHEMICAL INFORMATION

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. 

Formula: C12H10 / C6H5C6H5
Molecular mass: 154.2
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  


EXPOSURE & HEALTH EFFECTS

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

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

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

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


Occupational exposure limits
TLV: 0.2 ppm as TWA.
MAK: skin absorption (H); carcinogen category: 3B 

ENVIRONMENT
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. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: Xi, N; R: 36/37/38-50/53; S: (2)-23-60-61 

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    See Also:
       Toxicological Abbreviations
       BIPHENYL (JECFA Evaluation)
       Biphenyl (CICADS 6, 1999)