Name | o-terphenyl |
Synonyms | 0-terphenyl O-TERPHENYL o-terphenyl 1,2-terphenyl O-DIPHENYLBENZENE 1,1'-Biphenyl, 2-phenyl- |
CAS | 84-15-1 |
EINECS | 201-517-6 |
InChI | InChI=1/C18H14/c1-3-9-15(10-4-1)17-13-7-8-14-18(17)16-11-5-2-6-12-16/h1-14H |
Molecular Formula | C18H14 |
Molar Mass | 230.3 |
Density | 1,1 g/cm3 |
Melting Point | 56-59 °C (lit.) |
Boling Point | 337 °C (lit.) |
Flash Point | >230°F |
Water Solubility | Insoluble in water. Solubility in toluene is almost transparent. Sparingly soluble in lower alcohols and glycols; very soluble in common aromatic solvents. |
Solubility | Soluble in acetone, chloroform and benzene, insoluble in water |
Vapor Presure | <1 Pa (25 °C) |
Appearance | Colorless to yellowish crystals/white prismatic crystals (usually with light yellow) |
Color | White to Almost white |
Exposure Limit | NIOSH: IDLH 500 mg/m3; Ceiling 0.5 ppm(5 mg/m3) |
Maximum wavelength(λmax) | ['233nm(Cyclohexane)(lit.)'] |
BRN | 1908446 |
Storage Condition | Store below +30°C. |
Refractive Index | 1.5500 (estimate) |
MDL | MFCD00003055 |
Risk Codes | R22 - Harmful if swallowed R36/37/38 - Irritating to eyes, respiratory system and skin. R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R40 - Limited evidence of a carcinogenic effect R36/38 - Irritating to eyes and skin. R21/22 - Harmful in contact with skin and if swallowed. R67 - Vapors may cause drowsiness and dizziness R66 - Repeated exposure may cause skin dryness or cracking R11 - Highly Flammable R52/53 - Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R36 - Irritating to the eyes R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S60 - This material and its container must be disposed of as hazardous waste. S36/37 - Wear suitable protective clothing and gloves. S24/25 - Avoid contact with skin and eyes. S23 - Do not breathe vapour. S16 - Keep away from sources of ignition. S9 - Keep container in a well-ventilated place. |
UN IDs | UN 3077 9/PG 3 |
WGK Germany | 3 |
RTECS | WZ6472000 |
TSCA | Yes |
HS Code | 29029090 |
Hazard Class | 9 |
Packing Group | III |
Toxicity | LD50 orally in Rabbit: 1900 mg/kg |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Introduction | o-Terphenyl is an organic compound, chemical formula is C18H14, is one of the isomers of Terphenyl. It can be prepared by the Suzuki coupling reaction of 2-bromobiphenyl and Phenylboronic acid. It can be obtained by dehydrogenation cyclization reaction. |
appearance | o-Terphenyl was colorless to pale yellow crystals. |
Chemical Hazard | the combustion of O-diphenylbenzene produces toxic fumes containing carbon monoxide. |
toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
immediate life-threatening and health concentration | 500 mg/m3 |