1,5-NAPHTHENE DIISOCYANATE
| CAS # | 3173-72-6 |
|---|---|
| Formula |
C₁₀H₆(NCO)₂ |
| Synonyms |
1,5-diisocyanatonaphthalene; 1,5-naphthalene diisocyanate; 1,5-naphthalene ester of isocyanic acid; NDI |
| Physical description | White to light-yellow, crystalline flakes. | ||
|---|---|---|---|
| Boiling point | 505°F | Molecular weight | 210.2 |
| Freezing point/melting point | 261°F | Vapor pressure | 0.003 mmHg |
| Flash point | 311°F | Vapor density | |
| 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.) | N119 | ||
|---|---|---|---|
| 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* | 60 min |
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| Sampling volume (TWA)* | 60 L |
||
| Sampling flow rate (TWA)* | 1 L/min |
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| Sampling volume (STEL/Peak/C)* | |||
| Sampling flow rate (STEL/Peak/C)* | |||
| Analytical method instruments | HPLC | ||
| Method reference | OSHA PV2046 (partially validated) | ||
| Notes | Refrigerate filters until use. Sample open-faced!! |
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| Special requirements |
* 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 | |
|---|---|
| Bulk Method |
| Device | |||||
|---|---|---|---|---|---|
| Model/Type | |||||
|
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 | REL-TWA |
0.005 ppm (0.040 mg/m³) |
TLV-TWA | PEL-TWA |
|
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| PEL-STEL | REL-STEL | TLV-STEL | PEL-STEL |
|
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| PEL-C | REL-C |
0.020 ppm (0.170 mg/m³) [10 minutes] |
TLV-C | PEL-C |
|
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| Skin notation |
NA |
Skin notation |
N |
Skin notation |
NA |
Skin notation |
NA |
|
Notes:
Not established |
Notes: |
Notes:
Not established |
Notes:
Not established |
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| Health factors: See NIH-NLM PubChem. | IDLH | ||||||
| Carcinogenic classifications: IARC-3 |
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 - 1,5-Naphthalene diisocyanate NIOSH: Pocket Guide to Chemical Hazards - Naphthalene diisocyanate Literature References
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Last Updated Date : 12/14/2020