Other grades of this product :
| o-Terphenyl Basic information |
| o-Terphenyl Chemical Properties |
| Melting point | 56-59 °C (lit.) | | Boiling point | 337 °C (lit.) | | density | 1,1 g/cm3 | | vapor pressure | <1 Pa (25 °C) | | refractive index | 1.5500 (estimate) | | Fp | >230 °F | | storage temp. | Store below +30°C. | | solubility | 1.24mg/l | | form | Fluid | | color | White to Almost white | | Water Solubility | Insoluble in water. Solubility in toluene is almost transparent. Sparingly soluble in lower alcohols and glycols; very soluble in common aromatic solvents. | | λmax | 233nm(Cyclohexane)(lit.) | | BRN | 1908446 | | Exposure limits | NIOSH: IDLH 500 mg/m3; Ceiling 0.5 ppm(5 mg/m3) | | CAS DataBase Reference | 84-15-1(CAS DataBase Reference) | | EPA Substance Registry System | o-Terphenyl (84-15-1) |
| o-Terphenyl Usage And Synthesis |
| Chemical Properties | White crystalline | | Uses | Terphenyl mixtures are used industrially as heat storage and transfer agents, as textile dye carriers, and as intermediates in the production of nonspreading lubricants. Contemporary use of o-Terphenyl is found in solar-heating systems. It is used as a plasticizer for polystyrene for thermoplastic recording. | | Uses | Terphenyl mixtures are used industrially as heat storage and transfer agents, as textile dye carriers, and as intermediates in the production of nonspreading lubricants. Contemporary use of o-Terphenyl is found in solar-heating systems. It is used as a plasticizer for polystyrene for thermoplastic recording. | | General Description | Colorless or light-yellow solid. Mp 58-59°C; bp: 337°C. Density: 1.16 g cm-3. Insoluble in water. Usually shipped as a solid mixture with its isomers m-terphenyl and p-terphenyl that is used as a heat-transfer fluid. | | Reactivity Profile | O-TERPHENYL is non-flammable but combustible (flash point 339°F). Extremely stable thermally. Incompatible with strong oxidizing agents but not very reactive at room conditions. | | Hazard | Combustible. Eye and upper respiratory
tract irritant. | | 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. | | Purification Methods | Crystallise o-terphenyl from EtOH. Also purify it by chromatography of CCl4 solution on alumina, with pet ether as eluent, followed by crystallisation from pet ether (b 40-60o) or pet ether/*C6H6. It also distils under vacuum. [Beilstein 5 III 2292, 5 IV 2478.] |
| o-Terphenyl Preparation Products And Raw materials |
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