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Toluenediamine

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Synonyms & Trade Names
Diaminotoluene, Methylphenylene diamine, TDA, Toluenediamine isomers, Tolylenediamine [Note: Various isomers of TDA exist.]
CAS No.
25376-45-8
95-80-7 (2,4-TDA)
RTECS No.
XS9445000,XS9625000 (2,4-TDA)
DOT ID & Guide
1709 151(2,4-Toluenediamine)
Formula
CH₃C₆H₃(NH₂)₂
Conversion
IDLH
Ca [N.D.]
See: IDLH INDEX
Exposure Limits
NIOSH REL
Ca (all isomers) See Appendix A
OSHA PEL
none
Measurement Methods
NIOSH 5516;
OSHA 65
See: NMAM or OSHA Methods
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.]
Molecular Weight
122.2
Boiling Point
558°F
Melting Point
210°F
Solubility
Soluble
Vapor Pressure
(224°F): 1 mmHg
Ionization Potential
?
Specific Gravity
1.05 (Liquid at 212°F)
Flash Point
300°F
Upper Explosive Limit
?
Lower Explosive Limit
?
Combustible Solid
Incompatibilities & Reactivities
None reported
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, nose, throat; dermatitis; ataxia, tachycardia, nausea, vomiting, convulsions, resp depression; methemoglobinemia, cyanosis, headache, lassitude (weakness, exhaustion), dizziness, bluish skin; liver injury; [potential occupational carcinogen]
Target Organs
Eyes, skin, respiratory system, blood, cardiovascular system, liver
Cancer Site
[in animals: liver, skin & mammary gland tumors]
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
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Water flush immediately
Breathing:Respiratory support
Swallow:Medical attention immediately
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

See also
INTRODUCTION   ICSC CARD: 0582
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health