1,6-HEXAMETHYLENE DIISOCYANATE HOMOPOLYMER
| CAS # | 28182-81-2 |
|---|---|
| Formula |
(C₈H₁₂N₂O₂)n |
| Synonyms |
hexamethylene diisocyanate homopolymer; HDIH; 1,6-diisocyanato-hexane homopolymer; poly(hexamethylene diisocyanate) |
| Physical description | Colorless to yellow liquid with a mild odor. | ||
|---|---|---|---|
| Boiling point | decomposes | Molecular weight | 500 (approx) |
| Freezing point/melting point | -59.8°F | Vapor pressure | 0.05 mmHg at 77°F |
| Flash point | 442.4°F | Vapor density | 1.17 |
| Specific gravity | Ionization potential | ||
| Lower explosive limit (LEL) | Upper explosive limit (UEL) | ||
| NFPA health rating | NFPA fire rating | ||
| NFPA reactivity rating | NFPA special instruction | ||
| Vapor hazard ratio (VHR) | |||
| Historical exceedance percentage | |||
| Target organs | |||
| Analyte code (IMIS no.) | H130 | ||
|---|---|---|---|
| Sampling group | |||
| Sampler/Sampling media | Isocyanate Sampling Filter Kit - GFF (37 mm, open-faced) coated with 1 mg 1-(2-pyridyl)piperazine [SLTC103] | ||
| Sampling time* |
15 min |
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| Sampling volume (TWA)* |
15 L |
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| Sampling flow rate (TWA)* |
1 L/min |
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| Sampling volume (STEL/Peak/C)* |
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| Sampling flow rate (STEL/Peak/C)* |
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| Analytical method instruments | UHPLC | ||
| Method reference | OSHA 5002 (fully validated) | ||
| Notes |
Results may not reflect accurate exposures to the polymeric forms of isocyanates. Refrigerate coated filters until used. Sample open-faced!! |
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| Special requirements |
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* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.
| Wipe Sampler/Sampling media |
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|---|---|
| Bulk Method |
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| Device | |||||
|---|---|---|---|---|---|
| Model/Type | |||||
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Sampling information (see manufacturer instructions) |
|
OSHA PEL
8-hour TWA (ST) STEL (C) Ceiling Peak |
NIOSH REL
Up to 10-hour TWA (ST) STEL (C) Ceiling |
ACGIH TLV©
8-hour TWA (ST) STEL (C) Ceiling |
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|---|---|---|---|---|---|---|---|
| PEL-TWA |
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REL-TWA |
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TLV-TWA |
|
PEL-TWA |
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| PEL-STEL |
|
REL-STEL |
|
TLV-STEL |
|
PEL-STEL |
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| PEL-C |
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REL-C |
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TLV-C |
|
PEL-C |
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| Skin notation |
NA |
Skin notation |
NA |
Skin notation |
NA |
Skin notation |
NA |
|
Notes:
Not established |
Notes:
Not established |
Notes:
Not established |
Notes:
Not established |
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| Health factors: See NIH-NLM PubChem. | IDLH | ||||||
| Carcinogenic classifications: Not listed |
Notes:
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AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
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Additional Resources and Literature References
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NOAA: CAMEO Chemicals - Not listed NIOSH: Pocket Guide to Chemical Hazards - Not listed Literature References
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Last Updated Date : 04/14/2021