NIOSH Publication No. 2005-151:

NIOSH Pocket Guide to Chemical Hazards

September 2005

Octachloronaphthalene

CAS
2234-13-1

C10Cl8

RTECS
QK0250000
Synonyms & Trade Names

Halowax® 1051; 1,2,3,4,5,6,7,8-Octachloronaphthalene; Perchloronaphthalene
DOT ID & Guide

Exposure
Limits

NIOSH REL: TWA 0.1 mg/m3 ST 0.3 mg/m3 [skin]
OSHA PEL: TWA 0.1 mg/m3 [skin]
IDLH
Unknown See: 2234131
Conversion
Physical Description
Waxy, pale-yellow solid with an aromatic odor.
MW: 403.7
BP: 770°F
MLT: 365°F
Sol: Insoluble
VP: <1 mmHg
IP: ?

Sp.Gr: 2.00
Fl.P: NA
UEL: NA
LEL: NA

Noncombustible Solid
Incompatibilities & Reactivities

Strong oxidizers
Measurement Methods
NIOSH S97 (II-2)
See: NMAM or OSHA Methods
Personal Protection & Sanitation
(See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated/Daily
Remove: When wet or contaminated
Change: Daily

First Aid
(See procedures)
Eye: Irrigate immediately
Skin: Water flush immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
Respirator Recommendations
(See Appendix F) NIOSH/OSHA
Up to 1 mg/m3:
(APF = 10) Any supplied-air respirator
(APF = 50) Any self-contained breathing apparatus with a full facepiece
Emergency or planned entry into unknown concentrations or IDLH conditions:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus
Escape:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister having an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters./Any appropriate escape-type, self-contained breathing apparatus
Important additional information about respirator selection
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
Acne-form dermatitis; liver damage, jaundice
Target Organs
Skin, liver
See also: INTRODUCTION   See ICSC CARD: 1059   See MEDICAL TESTS: 0169