4,4'-Methylenedianiline
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CAS
101-77-9
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CH2(C6H4NH2)2
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RTECS
BY5425000
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Synonyms & Trade Names
4,4'-Diaminodiphenylmethane; para, para'-Diaminodiphenyl-methane; Dianilinomethane; 4,4'-Diphenylmethanediamine; MDA
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DOT ID & Guide
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Exposure
Limits
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NIOSH REL: Ca See Appendix A
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OSHA PEL: [1910.1050] TWA 0.010 ppm ST 0.100 ppm
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IDLH
Ca [N.D.]
See: IDLH INDEX
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Conversion
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Physical Description
Pale-brown, crystalline solid with a faint, amine-like odor.
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MW: 198.3
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BP: 748°F
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MLT: 198°F
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Sol: 0.1%
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VP(77°F): 0.0000002 mmHg
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IP: 10.70 eV
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Sp.Gr: 1.06 (Liquid at 212°F)
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Fl.P: 374°F
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UEL: ?
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LEL: ?
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Combustible Solid
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Incompatibilities & Reactivities
Strong oxidizers
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Measurement Methods
NIOSH 5029
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated/Daily
Remove: When wet or contaminated
Change: Daily
Provide: Eyewash, 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 (See Appendix E)
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:
(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
Irritation eyes; jaundice, hepatitis; myocardial damage; in animals: heart, liver, spleen damage; [potential occupational carcinogen]
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Target Organs
Eyes, liver, cardiovascular system, spleen
Cancer Site
[in animals: bladder cancer]
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See also: INTRODUCTION
See ICSC CARD: 1111 See MEDICAL TESTS: 0250
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