# NIOSH Pocket Guide to Chemical Hazards
Petroleum distillates (naphtha) | CAS 8002-05-9
| RTECS SE7449000
Synonyms & Trade Names Aliphatic petroleum naphtha, Petroleum naphtha, Rubber solvent | DOT ID & Guide 1255 128
Exposure Limits | NIOSH REL: TWA 350 mg/m3 C 1800 mg/m3 [15-minute]
OSHA PEL†: TWA 500 ppm (2000 mg/m3)
IDLH 1100 ppm [10%LEL] | Conversion 1 ppm = 4.05 mg/m3
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.]
MW: 99 (approx) | BP: 86-460°F | FRZ: -99°F | Sol: Insoluble
VP: 40 mmHg (approx) | IP: ? |  | Sp.Gr: 0.63-0.66
Fl.P: -40 to -86°F | UEL: 5.9% | LEL: 1.1% |
Flammable Liquid
Incompatibilities & Reactivities Strong oxidizers
Measurement Methods NIOSH 1550
Personal Protection & Sanitation 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
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
See also: INTRODUCTION