NIOSH Publication No. 2005-151:

NIOSH Pocket Guide to Chemical Hazards

September 2005

Naphtha (coal tar)

CAS
8030-30-6


RTECS
DE3030000
Synonyms & Trade Names

Crude solvent coal tar naphtha, High solvent naphtha, Naphtha
DOT ID & Guide

Exposure
Limits

NIOSH REL: TWA 100 ppm (400 mg/m3)
OSHA PEL: TWA 100 ppm (400 mg/m3)
IDLH
1000 ppm [10%LEL] See: 8030306
Conversion
1 ppm = 4.50 mg/m3 (approx)
Physical Description
Reddish-brown, mobile liquid with an aromatic odor.
MW: 110 (approx)
BP: 320-428°F
FRZ: ?
Sol: Insoluble
VP: <5 mmHg
IP: ?

Sp.Gr: 0.89-0.97
Fl.P: 100-109°F
UEL: ?
LEL: 1.0%

Class II Combustible Liquid: Fl.P. at or above 100F and below 140F.
Incompatibilities & Reactivities

Strong oxidizers
Measurement Methods
NIOSH 1550
See: NMAM or OSHA Methods
Personal Protection & Sanitation
(See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: No recommendation

First Aid
(See procedures)
Eye: Irrigate immediately
Skin: Soap wash promptly
Breathing: Respiratory support
Swallow: Medical attention immediately
Respirator Recommendations
NIOSH/OSHA
Up to 1000 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode
(APF = 50) Any chemical cartridge respirator with a full facepiece and organic vapor cartridge(s)
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister
(APF = 25) Any powered, air-purifying respirator with organic vapor cartridge(s)
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator 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/Any appropriate escape-type, self-contained breathing apparatus
Important additional information about respirator selection
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
Irritation eyes, skin, nose; dizziness, drowsiness; dermatitis; in animals: liver, kidney damage
Target Organs
Eyes, skin, respiratory system, central nervous system, liver, kidneys
See also: INTRODUCTION