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Petroleum distillates (naphtha)

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Synonyms & Trade Names
Aliphatic petroleum naphtha, Petroleum naphtha, Rubber solvent
CAS No.
8002-05-9
RTECS No.
SE7449000
DOT ID & Guide
Formula
Conversion
1 ppm = 4.05 mg/m3
IDLH
1100 ppm [10%LEL]
See: 8002059
Exposure Limits
NIOSH REL
TWA 350 mg/m3 C 1800 mg/m3 [15-minute]
OSHA PEL
TWA 500 ppm (2000 mg/m3) See Appendix G
Measurement Methods
NIOSH 1550
See: NMAM or OSHA Methods
Physical Description
Colorless liquid with a gasoline- or kerosene-like odor. [Note: A mixture of paraffins (C5 to C13) that may contain a small amount of aromatic hydrocarbons.]
Molecular Weight
99 (approx)
Boiling Point
86-460°F
Freezing Point
-99°F
Solubility
Insoluble
Vapor Pressure
40 mmHg (approx)
Ionization Potential
?
Specific Gravity
0.63-0.66
Flash Point
-40 to -86°F
Upper Explosive Limit
5.9%
Lower Explosive Limit
1.1%
Flammable Liquid
Incompatibilities & Reactivities
Strong oxidizers
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
irritation eyes, nose, throat; dizziness, drowsiness, headache, nausea; dry cracked skin; chemical pneumonitis (aspiration liquid)
Target Organs
Eyes, skin, respiratory system, central nervous system
Personal Protection/Sanitation
(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated
Remove:When wet (flammable)
Change:No recommendation
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Soap wash promptly
Breathing:Respiratory support
Swallow:Medical attention immediately
Respirator Recommendations

NIOSH

Up to 850 ppm:
(APF = 10) Any supplied-air respirator

Up to 1100 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode*
(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
INTRODUCTION
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health