Agent Name

Hexachlorodiphenyloxide

Alternative Name

Chlorinated diphenyl oxide

CAS Number

31242-93-0

Formula

C12-H4-Cl6-O

Major Category

Other Classes

Synonyms

Chlorinated diphenyl oxide; 1,1'-Oxybisbenzene hexachloro deriv.; Ether, hexachlorophenyl; Hexachloro diphenyl oxide; Hexachlorodiphenyl ether; Hexachlorodiphenyl oxide; Trichloro diphenyl ether; Trichloro diphenyl oxide; [ChemIDplus]

Category

Halogenated Polyaromatics

Description

White to yellow waxy semisolids; [ACGIH]

Sources/Uses

Used as a corrosion inhibitor, lubricant, and additive for detergents; also used to manufacture flame-resistant polymers, hydraulic fluids, pesticides, wood preservatives, and electrical insulators; [ACGIH]

Comments

Toxic to the liver in chronic animal studies; may induce chloracne in exposed workers; [ACGIH]

Exposure Assessment
Skin Designation (ACGIH)

Insufficient data

Bioaccumulates

Yes

TLV (ACGIH)

0.5 mg/m3

PEL (OSHA)

0.5 mg/m3

IDLH (NIOSH)

5 mg/m3

Excerpts from Documentation for IDLHs

Has been used as a fire retardant additive in plastics, textiles and adhesives; [Patty's, p. 4398] "No inhalation toxicity data are available on which to base an IDLH for chlorinated diphenyl oxide. Based on acute oral toxicity data in animals [Clayton and Clayton 1981], a value of about 35 mg/m3 would have been appropriate for chlorinated diphenyl oxide. However, the revised IDLH for chlorinated diphenyl oxide is 5 mg/m3 based on being 10 times the NIOSH REL and OSHA PEL of 0.5 mg/m3. . .

Explanatory Notes

VP = less than 0.00006 torr @ 20 deg C; [ACGIH]

Adverse Effects
Hepatotoxin

Hepatotoxin, Secondary

Dermatotoxin

Chloracne

Links to Other NLM Databases
Toxicity Information

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Chemical Information

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent: