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| o-Tolidine | CAS 119-93-7 | ||
| C14H16N2 | RTECS DD1225000 | ||
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Synonyms & Trade Names 4,4'-Diamino-3,3'-dimethylbiphenyl; Diaminoditolyl; 3,3'-Dimethylbenzidine; 3,3'-Dimethyl-4,4'-diphenyldiamine; 3,3'-Tolidine |
DOT ID & Guide |
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Exposure Limits |
NIOSH REL: Ca C 0.02 mg/m3 [60-minute] [skin] See Appendix A See Appendix C | ||
| OSHA PEL: See Appendix C | |||
| IDLH Ca [N.D.] | Conversion | ||
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Physical Description White to reddish crystals or powder. [Note: Darkens on exposure to air. Often used in paste or wet cake form. Used as a basis for many dyes.] |
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MW: 212.3 |
BP: 572°F |
MLT: 264°F |
Sol: 0.1% |
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VP: ? |
IP: ? |
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Sp.Gr: ? |
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Fl.P: ? |
UEL: ? |
LEL: ? |
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| Combustible Solid | |||
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Incompatibilities & Reactivities Strong oxidizers |
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Measurement Methods NIOSH 5013; OSHA 71 |
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Personal Protection & Sanitation 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: Soap 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 having a high-efficiency particulate filter/Any appropriate escape-type, self-contained breathing apparatus |
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| Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact | |
| Symptoms Irritation eyes, nose; in animals: liver, kidney damage; [potential occupational carcinogen] | |
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Target Organs
Eyes, respiratory system, liver, kidneys Cancer Site [in animals: liver, bladder & mammary gland tumors] |
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| See also: INTRODUCTION |