Toluenediamine
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CAS
25376-45-8
95-80-7 (2,4-TDA)
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CH3C6H3(NH2)2
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RTECS
XS9445000
XS9625000 (2,4-TDA)
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Synonyms & Trade Names
Diaminotoluene, Methylphenylene diamine, TDA, Toluenediamine isomers, Tolylenediamine [Note: Various isomers of TDA exist.]
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DOT ID & Guide
1709 151 (2,4-Toluenediamine)
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Exposure
Limits
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NIOSH REL: Ca (all isomers) See Appendix A
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OSHA PEL: none
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IDLH
Ca [N.D.]
See: IDLH INDEX
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Conversion
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Physical Description
Colorless to brown, needle-shaped crystals or powder. [Note: Tends to darken on storage & exposure to air. Properties given are for 2,4-TDA.]
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MW: 122.2
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BP: 558°F
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MLT: 210°F
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Sol: Soluble
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VP(224°F): 1 mmHg
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IP: ?
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Sp.Gr: 1.05 (Liquid at 212°F)
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Fl.P: 300°F
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UEL: ?
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LEL: ?
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Combustible Solid
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Incompatibilities & Reactivities
None reported
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Measurement Methods
NIOSH 5516; OSHA 65
See: NMAM or OSHA Methods
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Personal Protection & Sanitation (See protection codes)
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: Water flush immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
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Respirator Recommendations
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/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, skin, nose, throat; dermatitis; ataxia, tachycardia, nausea, vomiting, convulsions, respiratory depression; methemoglobinemia, cyanosis, headache, lassitude (weakness, exhaustion), dizziness, bluish skin; liver injury; [potential occupational carcinogen]
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Target Organs
Eyes, skin, respiratory system, blood, cardiovascular system, liver
Cancer Site
[in animals: liver, skin & mammary gland tumors]
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