| Identification | More | [Name]
p-Terphenyl | [CAS]
92-94-4 | [Synonyms]
[1,1':4',1'']TERPHENYL
4-PHENYLBIPHENYL
P-DIPHENYLBENZENE
P-TERPHENYL
PTP
TERPHENYL, P-
[1,1'
1,1'-Biphenyl, 4-phenyl-
1,4-terphenyl
4',1'']-Terphenyl
4-phenyl-1’-biphenyl
4-phenyl-bipheny
4-Phenyldiphenyl
benzene,1,4-diphenyl-
Biphenyl, 4-phenyl-
biphenyl,4-phenyl
diphenyl-1,4benzene
para-terphenyl
p-terphenyle
p-Triphenyl | [EINECS(EC#)]
202-205-2 | [Molecular Formula]
C18H14 | [MDL Number]
MFCD00003061 | [Molecular Weight]
230.3 | [MOL File]
92-94-4.mol |
| Chemical Properties | Back Directory | [Appearance]
White solid | [Melting point ]
212-213 °C(lit.)
| [Boiling point ]
389 °C(lit.)
| [density ]
1.23 | [vapor density ]
7.95 (vs air)
| [refractive index ]
1.5500 (estimate) | [Fp ]
207 °C
| [storage temp. ]
Sealed in dry,Room Temperature | [form ]
Crystals or Crystalline Powder | [color ]
White to slightly beige | [Stability:]
Stable. Combustible. Incompatible with strong oxidizing agents. | [Water Solubility ]
practically insoluble | [λmax]
276nm(Cyclohexane)(lit.) | [Detection Methods]
HPLC,NMR | [BRN ]
1908447 | [InChIKey]
XJKSTNDFUHDPQJ-UHFFFAOYSA-N | [CAS DataBase Reference]
92-94-4(CAS DataBase Reference) | [NIST Chemistry Reference]
p-Terphenyl(92-94-4) | [EPA Substance Registry System]
92-94-4(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin .
R37/38:Irritating to respiratory system and skin .
R36:Irritating to the eyes.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S37:Wear suitable gloves .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S60:This material and/or its container must be disposed of as hazardous waste . | [RIDADR ]
UN 3077 9/PG 3 | [WGK Germany ]
2
| [RTECS ]
WZ6475000
| [TSCA ]
Yes | [HS Code ]
29029090 | [Safety Profile]
Moderately toxic by ingestion. Combustible when exposed to heat or flame. To fight fire, use water, CO2, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes. | [Hazardous Substances Data]
92-94-4(Hazardous Substances Data) |
| Hazard Information | Back Directory | [Description]
p-Terphenyl(PTP) is an aromatic hydrocarbon isomer, formed by three benzene rings in ortho position. Pure terphenyl is a white crystalline solid, insoluble in water. Though polychlorinated terphenyls were used as heat storage and transfer agents, p-terphenyl is currently under investigation as a material to be used in opto-electronic devices, such as organic LED devices (OLEDs) and currently used in laser dyes and sunscreen lotions. In particle physics it has been used as a wavelength shifter, exploiting its sensitivity to VUV radiation, to read out scintillation light from liquid Xenon. Pterphenyl has also been used as a doping component for liquid scintillators.
So far, p-terphenyl has not been used as main component of particle detectors due to its short Light Attenuation Length. As a matter of fact this property could be exploited when detecting low-energy charged particles in small areas, providing both energy and position measurement. | [Chemical Properties]
a White or light-yellow solid. The melting point is 213°C, boiling point is 383°C, 250°C (6kPa), flash point is 207°C, and relative density is 1.234 (0°C). Soluble in hot benzene, slightly soluble in ether and carbon disulfide, extremely insoluble in ethanol and acetic acid. 427℃ sublimation. p-Terphenyl can be separated from the by-products of biphenyl production. | [Uses]
p-Terphenyl is a specialty material, and may be used in ionized radiation detectors, nonpolar laser dye, and single molecule optical probe of scanning near-field microscopy. | [Application]
LCD Electronics: P-Terphenyl is one of the basic intermediates for preparing diphenyl LCD materials at present.
Organic synthesis: P-Terphenyl is the basic raw material for synthesizing antifungal cyclic peptide (4-carboxyl P–Terphenyl CTP) and diphenyl polyamide material 4, 4-（DCTP).
Fine chemical engineering: under radiation, P-Terphenyl will generate fluorescence, and thus it can be used as an organic scintillation reagent. It is used as an illuminant in scintillation counters and as a synthetic intermediate for laser dyes.
p-Terphenyl-Sensitized Photoreduction of CO2 with Cobalt and Iron Porphyrins. Interaction between CO and Reduced Metalloporphyrins | [Definition]
ChEBI: p-Terphenyl is a para-terphenyl that consists of benzene attached to two phenyl units at positions 1 and 4 respectively. | [Synthesis Reference(s)]
Chemical and Pharmaceutical Bulletin, 30, p. 802, 1982 DOI: 10.1248/cpb.30.802
The Journal of Organic Chemistry, 50, p. 3104, 1985 DOI: 10.1021/jo00217a018 | [General Description]
White or light-yellow needles or leaves. Mp: 212-213°C; bp 376°C. Density: 1.23 g cm-3. Insoluble in water. Soluble in hot benzene. Very soluble in hot ethyl alcohol. Usually shipped as a solid mixture with its isomers o-terphenyl and m-terphenyl that is used as a heat-transfer fluid. | [Reactivity Profile]
p-Terphenyl(92-94-4) is non-flammable but combustible (flash point: 410°C). Extremely stable thermally. Incompatible with strong oxidizing agents but not very reactive at room conditions. | [Hazard]
Toxic by ingestion and inhalation. Eye and
upper respiratory tract irritant. | [Purification Methods]
Crystallise p-terphenyl from nitrobenzene or trichlorobenzene. It is also purified by chromatography on alumina in a darkened room, using pet ether, and then crystallising from pet ether (b 40-60o) or pet ether/*benzene. It is a fluorophore for scintillation counting and has ex 286nm : em 343nm in DMF, and max 277nm (log 4.50). [Beilstein 5 IV 2483.] |
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