Nitromethane
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CAS
75-52-5
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CH3NO2
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RTECS
PA9800000
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Synonyms & Trade Names
Nitrocarbol
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DOT ID & Guide
1261 / 129
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Exposure
Limits
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NIOSH REL: See Appendix D
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OSHA PEL: TWA 100 ppm (250 mg/m3)
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IDLH
750 ppm
See: 75525
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Conversion
1 ppm = 2.50 mg/m3
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Physical Description
Colorless, oily liquid with a disagreeable odor.
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MW: 61.0
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BP: 214°F
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FRZ: -20°F
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Sol: 10%
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VP: 28 mmHg
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IP: 11.08 eV
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Sp.Gr: 1.14
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Fl.P: 95°F
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UEL: ?
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LEL: 7.3%
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Class IC Flammable Liquid: Fl.P. at or above 73°F and below 100°F.
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Incompatibilities & Reactivities
Amines; strong acids, alkalis & oxidizers; hydrocarbons & other combustible materials; metallic oxides [Note: Slowly corrodes steel & copper when wet.]
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Measurement Methods
NIOSH 2527
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
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
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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
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Exposure Routes
inhalation, ingestion, skin and/or eye contact
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Symptoms
Dermatitis; in animals: irritation eyes, respiratory system; convulsions, narcosis; liver damage
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Target Organs
Eyes, skin, central nervous system, liver
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See also: INTRODUCTION
See ICSC CARD: 0522 |
