p-Phenylphenol

  • p-Biphenylol
  • (1,1'-Biphenyl)-4-ol
  • 4-Biphenylol
  • 4-Diphenylol
  • p-Hydroxybiphenyl
  • para-Hydroxydiphenyl
Formula
C6H5C6H4-4-(OH)
Structure
Description
Nearly white crystals.
Uses
As intermediate in manufacture of resins, also in rubber industry.

Registry Numbers and Inventories.
CAS
92-69-3
EC (EINECS/ELINCS)
202-179-2
R 36/37/38 51/53
S 26 36 61
RTECS
DV5850000
RTECS class
Tumorigen
UN (DOT)
2430
Merck
12,7459
Beilstein/Gmelin
1907452
Beilstein Reference
4-06-00-04600
EPA OPP
203601
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C12H10O
Formula mass
170.21
Melting point, °C
162
Boiling point, °C
321
Vapor pressure, mmHg
0.0004 (25 C)
Density
1.29 g/cm3
Solubility in water
0.7 g/L (20 C)
pKa/pKb
9.82 (pKa)
Partition coefficient, pKow
3.20
Heat of fusion
31.59 kJ/mol
Heat of vaporization
56.9 kJ/mol

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Minimize dust generation and accumulation. Avoid breathing dust, vapor, mist, or gas. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Use with adequate ventilation.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, using the appropriate protective equipment. Avoid generating dusty conditions. Provide ventilation.
Disposal code
3
Stability
Materials containing similar structural groups are normally stable.
Incompatibilities
Strong oxidizing agents, strong acids.
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
166
Autoignition, °C
> 250
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.
Fire potential
Combustible material: may burn but does not ignite readily.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
1
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure effects
Headache, fatigue, numbness, and aching limbs have occurred in workers. Peripheral and central nerve damage may occur.
   Ingestion
May cause severe gastrointestinal tract irritation with nausea, vomiting and possible burns. May be harmful if swallowed.
   Inhalation
May cause severe irritation of the upper respiratory tract with pain, burns, and inflammation.
   Skin
Exposure may cause irritation and possible burns.
   Eyes
Contact with eyes may cause severe irritation, and possible eye burns.

First aid
 
   Ingestion
Get medical aid. Wash mouth out with water.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
2430
Response guide
Hazard class
8
Packing Group
I; II; III
 
21. Phenols. Cresols
HS Code
2907 19 00