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| Isophorone diisocyanate | CAS 4098-71-9 | ||
| C12H18N2O2 | RTECS NQ9370000 | ||
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Synonyms & Trade Names IPDI; 3-Isocyanatomethyl-3,5,5-trimethylcyclohexyl-isocyanate; Isophorone diamine diisocyanate |
DOT ID & Guide 2290 156 |
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Exposure Limits |
NIOSH REL: TWA 0.005 ppm (0.045 mg/m3) ST 0.02 ppm (0.180 mg/m3) [skin] | ||
| OSHA PEL�: none | |||
| IDLH N.D. | Conversion 1 ppm = 9.09 mg/m3 | ||
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Physical Description Colorless to slightly yellow liquid with a pungent odor. |
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MW: 222.3 |
BP: ? |
FRZ: -76°F |
Sol: Decomposes |
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VP: 0.0003 mmHg |
IP: ? |
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Sp.Gr: 1.06 |
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Fl.P: 311°F |
UEL: ? |
LEL: ? |
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| Class IIIB Combustible Liquid: Fl.P. at or above 200�F. | |||
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Incompatibilities & Reactivities Water, alcohols, phenols, amines, mercaptans, amides, urethanes, ureas [Note: Reacts with water to form carbon dioxide.] |
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Measurement Methods OSHA PV2034 |
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Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet or contaminated Change: Daily Provide: Quick drench |
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 Up to 0.05 ppm: (APF = 10) Any supplied-air respirator* Up to 0.125 ppm: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode* Up to 0.25 ppm: (APF = 50) Any self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator with a full facepiece Up to 1 ppm: (APF = 2000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode Emergency or planned entry into unknown concentrations or IDLH conditions: (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 |
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| Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact | |
| Symptoms Irritation eyes, skin, respiratory system; chest tightness, dyspnea (breathing difficulty), cough, sore throat; bronchitis, wheezing, pulmonary edema; possible respiratory sensitization, asthma | |
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Target Organs
Eyes, skin, respiratory system |
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| See also: INTRODUCTION |