o-Nitrotoluene
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CAS
88-72-2
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NO2C6H4CH3
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RTECS
XT3150000
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Synonyms & Trade Names
o-Methylnitrobenzene, 2-Methylnitrobenzene, ortho-Nitrotoluene, 2-Nitrotoluene
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DOT ID & Guide
1664 / 152
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Exposure
Limits
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NIOSH REL: TWA 2 ppm (11 mg/m3) [skin]
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OSHA PEL†: TWA 5 ppm (30 mg/m3) [skin]
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IDLH
200 ppm
See: 88722
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Conversion
1 ppm = 5.61 mg/m3
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Physical Description
Yellow liquid with a weak, aromatic odor. [Note: A solid below 25°F.]
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MW: 137.1
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BP: 432°F
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FRZ: 25°F
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Sol: 0.07%
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VP: 0.1 mmHg
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IP: 9.43 eV
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Sp.Gr: 1.16
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Fl.P: 223°F
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UEL: ?
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LEL: 2.2%
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Class IIIB Combustible Liquid: Fl.P. at or above 200°F.
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Incompatibilities & Reactivities
Strong oxidizers, sulfuric acid
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Measurement Methods
NIOSH 2005
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 or contaminated
Change: No recommendation
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
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Respirator Recommendations
NIOSH
Up to 20 ppm:
(APF = 10) Any supplied-air respirator*
Up to 50 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode*
Up to 100 ppm:
(APF = 50) Any supplied-air respirator that has a tight-fitting facepiece and is 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
Up to 200 ppm:
(APF = 2000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
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:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister having an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters./Any appropriate escape-type, self-contained breathing apparatus
Important additional information about respirator selection
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Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
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Symptoms
Anoxia, cyanosis; headache, lassitude (weakness, exhaustion), dizziness; ataxia; dyspnea (breathing difficulty); tachycardia; nausea, vomiting
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Target Organs
Blood, central nervous system, cardiovascular system, skin, gastrointestinal tract
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See also: INTRODUCTION
See ICSC CARD: 0931 See MEDICAL TESTS: 0168
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