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Isophorone diisocyanate																				Related Pages
Synonyms & Trade Names
			IPDI, 3-Isocyanatomethyl-3,5,5-trimethylcyclohexyl-isocyanate, Isophorone diamine diisocyanate
CAS No.
			4098-71-9
	RTECS No.
			NQ9370000
	DOT ID & Guide
			2290 156

FormulaC12H18N2O2
	Conversion
			1 ppm = 9.09 mg/m3
	IDLH
			N.D.See: IDLH INDEX

Exposure Limits
			NIOSH RELTWA 0.005 ppm (0.045 mg/m3) ST 0.02 ppm (0.180 mg/m3) [skin]
					OSHA PEL none See Appendix G
	Measurement Methods
			**NIOSH** 5525;**OSHA** PV2034
					
					See: NMAM or OSHA Methods
										
Physical Description
			Colorless to slightly yellow liquid with a pungent odor.													
										
Molecular Weight222.3	
	Boiling Point?
	Freezing Point-76°F
	SolubilityDecomposes
	Vapor Pressure0.0003 mmHg
	Ionization Potential?											
Specific Gravity1.06	
	Flash Point311°F
	Upper Explosive Limit?
	Lower Explosive Limit?
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.]
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 resp sensitization, asthma
Target Organs
			Eyes, skin, respiratory system
										
Personal Protection/Sanitation
			(See protection codes) **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 canisterAny appropriate escape-type, self-contained breathing apparatus
				Important additional information about respirator selection
See also
			INTRODUCTION
					  ICSC CARD: 0499

			
							

			Page last reviewed:  October 30, 2019						Content
							source: 	National Institute for Occupational Safety and Health NIOSH Pocket Guide to Chemical Hazards
Introduction
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Appendices
A – NIOSH Potential Occupational Carcinogens
B – Thirteen OSHA-Regulated Carcinogens
C – Supplementary Exposure Limits
D – Substances with No Established RELs
E – OSHA Respirator Requirements for Selected Chemicals
F – Miscellaneous Notes
G – 1989 Air Contaminants Update Project: Exposure Limits NOT in Effect
Type C & CE – Definitions for Type C and Type CE Respirators
Personal Protection and Sanitation Codes
First Aid Procedures Follow NIOSH Facebook
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