# NIOSH Pocket Guide to Chemical Hazards
2-Nitropropane | CAS 79-46-9
(CH3)2CH(NO2) | RTECS TZ5250000
Synonyms & Trade Names Dimethylnitromethane, iso-Nitropropane, 2-NP | DOT ID & Guide 2608 129
Exposure Limits | NIOSH REL: Ca See Appendix A
OSHA PEL†: TWA 25 ppm (90 mg/m3)
IDLH Ca [100 ppm] | Conversion 1 ppm = 3.64 mg/m3
Physical Description Colorless liquid with a pleasant, fruity odor.
MW: 89.1 | BP: 249°F | FRZ: -135°F | Sol: 2%
VP: 13 mmHg | IP: 10.71 eV |  | Sp.Gr: 0.99
Fl.P: 75°F | UEL: 11.0% | LEL: 2.6% |
Class IC Flammable Liquid: Fl.P. at or above 73°F and below 100°F.
Incompatibilities & Reactivities Amines; strong acids, alkalis & oxidizers; metal oxides; combustible materials
Measurement Methods NIOSH 2528; OSHA 15, 46
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 At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration: (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, skin, nose, respiratory system; headache, anorexia, nausea, vomiting, diarrhea; kidney, liver damage; [potential occupational carcinogen]
Target Organs Eyes, skin, respiratory system, central nervous system, kidneys, liver Cancer Site [in animals: liver tumors]
See also: INTRODUCTION