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o-Dianisidine |
CAS 119-90-4 | ||
(NH2C6H3OCH3)2 |
RTECS DD0875000 | ||
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Synonyms & Trade Names Dianisidine; 3,3'-Dianisidine; 3,3'-Dimethoxybenzidine |
DOT ID & Guide |
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Exposure
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NIOSH REL: Ca See Appendix A See Appendix C | ||
| OSHA PEL: See Appendix C | |||
| IDLH Ca [N.D.] See: IDLH INDEX | Conversion | ||
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Physical Description Colorless crystals that turn a violet color on standing. [Note: Used as a basis for many dyes.] |
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MW: 244.3 |
BP: ? |
MLT: 279°F |
Sol: Insoluble |
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VP: ? |
IP: ? |
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Sp.Gr: ? |
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Fl.P: 403°F |
UEL: ? |
LEL: ? |
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| Combustible Solid | |||
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Incompatibilities & Reactivities Oxidizers |
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Measurement Methods NIOSH 5013; OSHA 71 See: NMAM or OSHA Methods |
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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 |
First Aid (See procedures) Eye: Irrigate immediately Skin: Soap wash immediately Breathing: Respiratory support Swallow: Medical attention immediately |
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Important additional information about respirator selection 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 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 |
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| Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact | |
| Symptoms Irritation skin; in animals: kidney, liver damage; thyroid, spleen changes; [potential occupational carcinogen] | |
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Target Organs
Skin, kidneys, liver, thyroid, liver Cancer Site [in animals: bladder, liver, stomach & mammary gland tumors] |
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| See also: INTRODUCTION |