# NIOSH Pocket Guide to Chemical Hazards
1-Nitropropane | CAS 108-03-2
CH3CH2CH2NO2 | RTECS TZ5075000
Synonyms & Trade Names Nitropropane, 1-NP | DOT ID & Guide 2608 129
Exposure Limits | NIOSH REL: TWA 25 ppm (90 mg/m3)
OSHA PEL: TWA 25 ppm (90 mg/m3)
IDLH 1000 ppm | Conversion 1 ppm = 3.64 mg/m3
Physical Description Colorless liquid with a somewhat disagreeable odor.
MW: 89.1 | BP: 269°F | FRZ: -162°F | Sol: 1%
VP: 8 mmHg | IP: 10.81 eV |  | Sp.Gr: 1.00
Fl.P: 96°F | UEL: ? | LEL: 2.2% |
Class IC Flammable Liquid: Fl.P. at or above 73°F and below 100°F.
Incompatibilities & Reactivities Amines; strong acids, alkalis & oxidizers; hydrocarbons & other combustible materials; metal oxides
Measurement Methods OSHA 46
Personal Protection & Sanitation Skin: No recommendation Eyes: Prevent eye contact Wash skin: No recommendation 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/OSHA Up to 250 ppm: (APF = 10) Any supplied-air respirator* Up to 625 ppm: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode* Up to 1000 ppm: (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: Any appropriate escape-type, self-contained breathing apparatus
Exposure Routes inhalation, ingestion, skin and/or eye contact
Symptoms Irritation eyes; headache, nausea, vomiting, diarrhea; in animals: liver, kidney damage
Target Organs Eyes, central nervous system, liver, kidneys
See also: INTRODUCTION