Agent Name

m-Terphenyl

CAS Number

92-06-8

Formula

C18-H14

Major Category

Other Classes

Synonyms

1,1'-Biphenyl, 3-phenyl-; 1,1':3',1''-Terphenyl; 1,3-Diphenylbenzene; 1,3-Terphenyl; Isodiphenylbenzene; Santowax M; m-Diphenylbenzene; m-Terphenyl; m-Triphenyl; [ChemIDplus]

Category

Terphenyls

Description

Yellow solid (needles); [NIOSH]

Sources/Uses

Terphenyl mixtures are used as heat transfer media, dye carriers, and in the production of lubricants; [ACGIH]

Comments

m-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]

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

1.75E-5 mm Hg

Explanatory Notes

Flash point = 191 deg C;

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Other Information

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