Enter search terms separated by spaces.
Hexamethylene diisocyanate |
|||||
Synonyms & Trade Names1,6-Diisocyanatohexane; HDI; Hexamethylene-1,6-diisocyanate; 1,6-Hexamethylene diisocyanate; HMDI |
|||||
CAS No.822-06-0 |
RTECS No.MO1740000 |
DOT ID & Guide2281 156 |
|||
FormulaOCN[CH2]6NCO |
Conversion1 ppm = 6.88 mg/m3 |
IDLHN.D.See: IDLH INDEX |
|||
Exposure LimitsNIOSH REL: TWA 0.005 ppm (0.035 mg/m3) C 0.020 ppm (0.140 mg/m3) [10-minute]OSHA PEL: none |
Measurement MethodsNIOSH 5521 , 5522 , 5525; OSHA 42 See: NMAM or OSHA Methods |
||||
Physical DescriptionClear, colorless to slightly yellow liquid with a sharp, pungent odor. |
|||||
MW:168.2 |
BP:415°F |
FRZ:-89°F |
Sol:Low (Reacts) |
VP(77°F): 0.05 mmHg | IP:? |
Sp.Gr(77°F): 1.04 | Fl.P:284°F |
UEL:? |
LEL:? |
||
Class IIIB Combustible Liquid: Fl.P. at or above 200°F. | |||||
Incompatibilities & ReactivitiesWater, alcohols, strong bases, amines, carboxylic acids, organotin catalysts [Note: Reacts slowly with water to form carbon dioxide. Avoid heating above 392°F (polymerizes).] |
|||||
Exposure Routesinhalation, ingestion, skin and/or eye contact |
|||||
Symptomsirritation eyes, skin, respiratory system; cough, dyspnea (breathing difficulty), bronchitis, wheezing, pulmonary edema, asthma; corneal damage, skin blisters |
|||||
Target OrgansEyes, 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: No recommendation Provide: Eyewash, Quick drench |
First Aid(See procedures)Eye: Irrigate immediately Skin: Soap flush immediately Breathing: Respiratory support Swallow: Medical attention immediately |
||||
Respirator Recommendations
NIOSH Up to 0.05 ppm: Up to 0.125 ppm: Up to 0.25 ppm: Up to 1 ppm: Emergency or planned entry into unknown concentrations or IDLH conditions: Escape: |
|||||
See also: INTRODUCTION See ICSC CARD: 0278 |
Contact Us:
- National Institute for Occupational Safety and Health (NIOSH)
- Centers for Disease Control and Prevention
- 800-CDC-INFO
(800-232-4636)
TTY: (888) 232-6348 - New Hours of Operation
8am-8pm ET/Monday-Friday
Closed Holidays - cdcinfo@cdc.gov