Isophorone diisocyanate
|
CAS
4098-71-9
|
C12H18N2O2
|
RTECS
NQ9370000
|
Synonyms & Trade Names
IPDI; 3-Isocyanatomethyl-3,5,5-trimethylcyclohexyl-isocyanate; Isophorone diamine diisocyanate
|
DOT ID & Guide
2290 / 156
|
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.
See: IDLH INDEX
|
Conversion
1 ppm = 9.09 mg/m3
|
Physical Description
Colorless to slightly yellow liquid with a pungent odor.
|
MW: 222.3
|
BP: ?
|
FRZ: -76°F
|
Sol: Decomposes
|
VP: 0.0003 mmHg
|
IP: ?
|
|
Sp.Gr: 1.06
|
Fl.P: 311°F
|
UEL: ?
|
LEL: ?
|
|
Class IIIB Combustible Liquid: Fl.P. at or above 200°F.
|
Incompatibilities & Reactivities
Water, alcohols, phenols, amines, mercaptans, amides, urethanes, ureas [Note: Reacts with water to form carbon dioxide.]
|
Measurement Methods
NIOSH 5525;
OSHA PV2034
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
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
|
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
Important additional information about respirator selection
|
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
|
Target Organs
Eyes, skin, respiratory system
|
See also: INTRODUCTION
See ICSC CARD: 0499 |