N,N-Dimethylaniline
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CAS
121-69-7
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C6H5N(CH3)2
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RTECS
BX4725000
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Synonyms & Trade Names
N,N-Dimethylbenzeneamine; N,N-Dimethylphenylamine [Note: Also known as Dimethylaniline which is a correct synonym for Xylidine.]
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DOT ID & Guide
2253 / 153
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Exposure
Limits
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NIOSH REL: TWA 5 ppm (25 mg/m3) ST 10 ppm (50 mg/m3) [skin]
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OSHA PEL†: TWA 5 ppm (25 mg/m3) [skin]
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IDLH
100 ppm
See: 121697
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Conversion
1 ppm = 4.96 mg/m3
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Physical Description
Pale yellow, oily liquid with an amine-like odor. [Note: A solid below 36°F.]
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MW: 121.2
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BP: 378°F
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FRZ: 36°F
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Sol: 2%
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VP: 1 mmHg
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IP: 7.14 eV
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Sp.Gr: 0.96
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Fl.P: 142°F
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UEL: ?
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LEL: ?
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Class IIIA Combustible Liquid: Fl.P. at or above 140°F and below 200°F.
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Incompatibilities & Reactivities
Strong oxidizers, strong acids, benzoyl peroxide
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Measurement Methods
NIOSH 2002; OSHA PV2064
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
Provide: Quick drench
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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 50 ppm:
(APF = 10) Any supplied-air respirator
Up to 100 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:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister/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 symptoms: cyanosis, lassitude (weakness, exhaustion), dizziness, ataxia; methemoglobinemia
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Target Organs
Blood, kidneys, liver, cardiovascular system
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See also: INTRODUCTION
See ICSC CARD: 0877 See MEDICAL TESTS: 0085
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