NIOSH Pocket Guide to Chemical Hazards

1-Nitropropane CAS 108-03-2
Synonyms & Trade Names
Nitropropane, 1-NP
DOT ID & Guide
2608 129
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 73F and below 100F.
Incompatibilities & Reactivities
Amines; strong acids, alkalis & oxidizers; hydrocarbons & other combustible materials; metal oxides
Measurement Methods
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