| Agent Name |
p-Terphenyl |
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| CAS Number |
92-94-4 |
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| Formula |
C18-H14 |
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| Major Category |
Other Chemicals |
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| Synonyms |
1,1'-Biphenyl, 4-phenyl-; 1,4-Diphenylbenzene; 4-Phenylbiphenyl; 4-Phenyldiphenyl; Biphenyl, 4-phenyl-; PT; PTP; Santowax P; Tannin from pyrogallol; p-Diphenylbenzene; p-Terphenyl; p-Triphenyl; [ChemIDplus] |
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| Category |
Terphenyls |
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| Description |
White or light-yellow solid; [NIOSH] |
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| Sources/Uses |
Terphenyl mixtures are used as heat transfer media, dye carriers, and in the production of lubricants; [ACGIH] |
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| Comments |
p-Terphenyl caused kidney injury in subchronic feeding studies in rats. Workers complained of eye and respiratory irritation after inhaling vapors of heated terphenyls. The TLV Basis for Terphenyls is upper respiratory tract and eye irritation; [ACGIH] A skin, eye, and respiratory tract irritant; [CAMEO] |
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| Exposure Assessment |
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| Skin Designation (ACGIH) |
No |
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| Ceiling (ACGIH) |
5 mg/m3 |
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| PEL (OSHA) | Ceiling(OSHA) = 9 mg/m3 |
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| IDLH (NIOSH) |
500 mg/m3 |
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| Excerpts from Documentation for IDLHs |
Other animal data: In 30�day feeding studies involving doses of 250 or 500 mg/kg/day, rats fed o�terphenyl showed elevated liver and kidney weight ratios, rats fed m�terphenyl showed elevated kidney weight ratios only, and rats fed p�terphenyl showed no elevation in liver or kidney weight ratios [Cornish et al. 1962]. Human data: It has been reported that workers have been exposed to 280 mg/m3 without adverse effect [Testa and Masi 1964] |
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| Vapor Pressure |
3.42 x 10 -07 mm Hg |
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| Explanatory Notes |
Flash point = 405 deg F; |
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| Links to Other NLM Databases |
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| Health Studies |
Human Health Effects from Hazardous Substances Data Bank: PARA-TERPHENYL
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