Terphenyl
Names | |
---|---|
IUPAC name
1,4-Diphenylbenzene | |
Other names
p-Terphenyl; 1,4-Diphenylbenzene; para-Diphenylbenzene; p-Diphenylbenzene; para-Triphenyl; p-Triphenyl | |
Identifiers | |
92-94-4 (para) 92-06-8 (meta) 84-15-1 (ortho) 26140-60-3 (unspecified) | |
3D model (Jmol) | Interactive image (para): Interactive image |
ChemSpider | 6848 (para) |
PubChem | 7115 |
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Properties | |
C18H14 | |
Molar mass | 230.31 g·mol−1 |
Appearance | White powder[1] |
Density | 1.24 g/cm3 |
Melting point | 212 to 214 °C (414 to 417 °F; 485 to 487 K)[1] 212-213 °C[2] |
Boiling point | 389 °C (732 °F; 662 K)[2] |
Insoluble[1] | |
Refractive index (nD) |
1.65[3] |
Hazards | |
Main hazards | Iritant (Xi) |
R-phrases | R36/37/38 R50/53 |
S-phrases | S26 S60 S61 |
NFPA 704 | |
Flash point | 207 °C (405 °F; 480 K)[2] |
US health exposure limits (NIOSH): | |
PEL (Permissible) |
C 9 mg/m3 (1 ppm)[4][5][6] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
verify (what is ?) | |
Infobox references | |
Terphenyls are a group of closely related aromatic hydrocarbons. Also known as diphenylbenzenes or triphenyls, they consist of a central benzene ring substituted with two phenyl groups. The three isomers are ortho-terphenyl, meta-terphenyl, and para-terphenyl. Commercial grade terphenyl is generally a mixture of the three isomers. This mixture is used in the production of polychlorinated terphenyls, which were formerly used as heat storage and transfer agents.[1]
p-Terphenyl is the most common isomer. It is used as a laser dye and a sunscreen ingredient.[1]
- ortho-Terphenyl
- meta-Terphenyl
- para-Terphenyl
See also
References
- 1 2 3 4 5 p-Terphenyl at chemicalland21.com
- 1 2 3 p-Terphenyl at Sigma-Aldrich
- ↑
- ↑ "NIOSH Pocket Guide to Chemical Hazards #0591". National Institute for Occupational Safety and Health (NIOSH).
- ↑ "NIOSH Pocket Guide to Chemical Hazards #0592". National Institute for Occupational Safety and Health (NIOSH).
- ↑ "NIOSH Pocket Guide to Chemical Hazards #0593". National Institute for Occupational Safety and Health (NIOSH).
External links
- p-Terphenyl at the Oregon Laser Medical Center
- o-Terphenyl, m-Terphenyl, p-Terphenyl at Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health
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