o-Terphenyl
Agent Name
o-Terphenyl
CAS Number
84-15-1
Formula
C18-H14
Major Category
Other Classes
Synonyms
o-Diphenylbenzene; 1,2-Diphenylbenzene; 2-Phenylbiphenyl; 1,2-Terphenyl; ortho-Terphenyl; o-Triphenyl; [NIOSH]
Category
Terphenyls
Description
Colorless or light-yellow solid; [NIOSH]
Sources/Uses
Terphenyl mixtures are used as heat transfer media, dye carriers, and in the production of lubricants; [ACGIH]
Comments
o-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; [ICSC]
Biomedical References
Exposure Assessment
Skin Designation (ACGIH)
Insufficient data
Ceiling (ACGIH)
5 mg/m3
PEL (OSHA)
Ceiling(OSHA) = 9 mg/m3
IDLH (NIOSH)
500 mg/m3
Excerpts from Documentation for IDLHs
Other animal data: In 30day feeding studies involving doses of 250 or 500 mg/kg/day, rats fed oterphenyl showed elevated liver and kidney weight ratios, rats fed mterphenyl showed elevated kidney weight ratios only, and rats fed pterphenyl 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]
Vapor Pressure
0.00025 mm Hg
Explanatory Notes
Flash point = 163 deg C;
NFPA
must be preheated
Diseases, Processes, and Activities Linked to This Agent
Other Information
No other related information on this agent was found.