Naphtha (coal tar)

Synonyms & Trade Names
Crude solvent coal tar naphtha, High solvent naphtha, Naphtha
CAS No.
8030-30-6
RTECS No.
DOT ID & Guide
Formula
Conversion
1 ppm = 4.50 mg/m3 (approx)
IDLH
1000 ppm [10% LEL]
See: 8030306
Exposure Limits
NIOSH REL
TWA 100 ppm (400 mg/m3)
OSHA PEL
TWA 100 ppm (400 mg/m3)
Measurement Methods
NIOSH 1550
See: NMAM or OSHA Methods
Physical Description
Reddish-brown, mobile liquid with an aromatic odor.
Molecular Weight
110 (approx)
Boiling Point
320-428°F
Freezing Point
?
Solubility
Insoluble
Vapor Pressure
<5 mmHg
Ionization Potential
?
Specific Gravity
0.89-0.97
Flash Point
100-109°F
Upper Exposive Limit
?
Lower Explosive Limit
?
Class II Combustible Liquid: Fl.P. at or above 100°F and below 140°F.
Incompatibilities & Reactivities
Strong oxidizers
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
Personal Protection/Sanitation
(See protection codes)
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

See also
Page last reviewed: November 29, 2018