o-Terphenyl CAS 84-15-1
Introduction：Basic information about o-Terphenyl CAS 84-15-1, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
o-Terphenyl Basic information
| Product Name: | o-Terphenyl |
| Synonyms: | O-DIPHENYLBENZENE;O-TERPHENYL;0-terphenyl;1,1'-Biphenyl, 2-phenyl-;1,2-terphenyl;1,1':2',1 -Terphenyl;1,1':2',1''-Terphenyl;1,1’:2’,1’’-Terphenyl |
| CAS: | 84-15-1 |
| MF: | C18H14 |
| MW: | 230.3 |
| EINECS: | 201-517-6 |
| Product Categories: | Arenes;Building Blocks;Chemical Synthesis;Organic Building Blocks |
| Mol File: | 84-15-1.mol |
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) |
| InChI | 1S/C18H14/c1-3-9-15(10-4-1)17-13-7-8-14-18(17)16-11-5-2-6-12-16/h1-14H |
| InChIKey | OIAQMFOKAXHPNH-UHFFFAOYSA-N |
| SMILES | c1ccc(cc1)-c2ccccc2-c3ccccc3 |
| CAS DataBase Reference | 84-15-1(CAS DataBase Reference) |
| EPA Substance Registry System | o-Terphenyl (84-15-1) |
Safety Information
| Hazard Codes | Xn,T,Xi,F,N |
| Risk Statements | 22-36/37/38-50/53-40-36/38-21/22-67-66-11-52/53-36-51/53 |
| Safety Statements | 26-61-60-36/37-24/25-23-16-9 |
| OEL | Ceiling: 5 mg/m3 (0.5 ppm) |
| RIDADR | UN 3077 9/PG 3 |
| WGK Germany | 3 |
| RTECS | WZ6472000 |
| TSCA | TSCA listed |
| HazardClass | 9 |
| PackingGroup | III |
| HS Code | 29029090 |
| Storage Class | 6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects |
| Hazard Classifications | Acute Tox. 3 Inhalation Acute Tox. 4 Oral Aquatic Acute 1 Aquatic Chronic 1 Eye Irrit. 2 |
| Hazardous Substances Data | 84-15-1(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 1900 mg/kg |
| IDLA | 500 mg/m3 |
| Chemical Properties | White crystalline |
| Uses | o-Terphenyl is used as a plasticizer for polystyrene for thermoplastic recording. Terphenyl mixtures are used industrially as heat storage and transfer agents, as textile dye carriers, and as intermediates in the production of nonspreading lubricants. From 1960-1970, technical grade terphenyls were used as coolants for nuclear reactors, whereas contemporary use has been in solar-heating systems. |
| Preparation | o-Terphenyl was synthesized via a Suzuki-Miyaura coupling between 2-bromobiphenyl and phenylboronic acid. |
| 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 respiratorytract 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.] |
| References | [1] SHILPI KARMAKAR Jyotirmayee D Tirtha Mandal. Ring Closing Metathesis Approach for the Synthesis of o-Terphenyl Derivatives[J]. European Journal of Organic Chemistry, 2019, 2019 34: Pages 5916-5924. DOI:10.1002/ejoc.201900988. |
o-Terphenyl Preparation Products And Raw materials
| Raw materials | 1,2-Diiodobenzene-->2-BIPHENYLBORONIC ACID-->diphenyl(2,2,2-trifluoroethyl)sulfanium trifluoromethanesulfonate-->2-Iodobiphenyl-->Phenylboronic acid-->1-Bromo-2-iodobenzene-->Benzene-->1,2-Dibromobenzene |
| Preparation Products | Triphenylene-->2-Bromobiphenyl-->Phenanthridine-->2,3,6,7,10,11-hexabromobenzo[9,10]phenanthrene-->Biphenyl |
