Nitromethane |
Synonyms & Trade Names Nitrocarbol |
CAS No. 75-52-5 |
RTECS No. PA9800000 |
DOT ID & Guide 1261 129 |
FormulaCH3NO2 |
Conversion 1 ppm = 2.50 mg/m3 |
IDLH 750 ppm
See: 75525 |
Exposure Limits NIOSH REL: See Appendix D
OSHA PEL: TWA 100 ppm (250 mg/m3) |
Measurement Methods
NIOSH 2527
See: NMAM or OSHA Methods |
Physical Description Colorless, oily liquid with a disagreeable odor. |
MW: 61.0 |
BP: 214°F |
FRZ: -20°F |
Sol: 10% |
VP: 28 mmHg |
IP: 11.08 eV |
Sp.Gr: 1.14 |
Fl.P: 95°F |
UEL: ? |
LEL: 7.3% |
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| 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; metallic oxides [Note: Slowly corrodes steel & copper when wet.] |
Exposure Routes inhalation, ingestion, skin and/or eye contact |
Symptoms dermatitis; in animals: irritation eyes, respiratory system; convulsions, narcosis; liver damage |
Target Organs Eyes, skin, central nervous system, liver |
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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
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash promptly
Breathing: Respiratory support
Swallow: Medical attention immediately |
Respirator Recommendations OSHA Up to 750 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:
Any appropriate escape-type, self-contained breathing apparatus
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 0522
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