IPCS INCHEM Home
o-PHENYLPHENOL
ICSC: 0669
Peer-Review Status: 04.10.2013 Validated
1,1'-Biphenyl-2-ol
2-Biphenylol
2-Hydroxybiphenyl
2-Phenylphenol 
CAS #: 90-43-7 RTECS #: DV5775000
UN #: 3077
EC #: 604-020-00-6
EINECS #: 201-993-5
    Formula: C12H10O / C6H5C6H4OH
Molecular mass: 170.2

TYPES OF HAZARD
/ EXPOSURE
ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE-FIGHTING
FIRE Combustible. Gives off irritating or toxic fumes (or gases) in a fire.  NO open flames.  Use water spray, powder, alcohol-resistant foam, carbon dioxide. 
EXPLOSION Finely dispersed particles form explosive mixtures in air.  Prevent deposition of dust.  In case of fire: keep drums, etc., cool by spraying with water. 
 
EXPOSURE   PREVENT DISPERSION OF DUST!   
Inhalation Cough. Sore throat.  Avoid inhalation of dust and mist. Use ventilation (not if powder), local exhaust or breathing protection.  Fresh air, rest. Seek medical attention if you feel unwell. 
Skin Redness.  Protective gloves.  Remove contaminated clothes. Rinse and then wash skin with water and soap. Seek medical attention if you feel unwell. 
Eyes Redness. Pain.  Wear safety goggles or face shield.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion No acute symptoms expected.  Do not eat, drink, or smoke during work.  Rinse mouth. Give one or two glasses of water to drink. Seek medical attention if you feel unwell. 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into sealable containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.   
EC Classification
Symbol: Xi, N; R: 36/37/38-50; S: (2)-22-61 
UN Classification
UN Hazard Class: 9; UN Pack Group: III 
GHS Classification
Signal: Warning
May be harmful if swallowed
Causes skin irritation
Causes serious eye irritation
May cause respiratory irritation
Very toxic to aquatic life 
excl mark;warnenviro;aqua

EMERGENCY RESPONSE SAFE STORAGE
NFPA Code: H3; F1; R0.  Separated from strong oxidants, strong bases and food and feedstuffs. Store only in original container. Provision to contain effluent from fire extinguishing. Store in an area without drain or sewer access. 

IMPORTANT DATA
Physical State; Appearance
WHITE CRYSTALS. 

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

Chemical dangers
Reacts with strong bases and strong oxidants. Decomposes on heating. This produces carbon dioxide, carbon monoxide and irritating fumes. 

Occupational exposure limits
TLV (NOT-ESTABLISHED):.
MAK (2b (not established but data is available)): (DFG 2013). 

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

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly on spraying or when dispersed, especially if powdered. 

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

Effects of long-term or repeated exposure
Tumours have been detected in experimental animals but may not be relevant to humans. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Boiling point: 286°C
Melting point: 58-60°C
Relative density (water = 1): 1.2
Solubility in water, g/l at 20°C: 0.2 (very poor)
Vapour pressure, Pa at 20°C: 0.07
Flash point: 124°C c.c.
Auto-ignition temperature: 530°C
Octanol/water partition coefficient as log Pow: 3.2
Explosive limits, vol% in air: 1.4-9.5 
The substance is very toxic to aquatic organisms. Avoid release to the environment in circumstances different to normal use. 

NOTES
Carrier solvents used in commercial formulations may change physical and toxicological properties. 

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