ETHYLIDENE NORBORNENE
| Chemical Identification | |
|---|---|
| CAS # | 16219-75-3 |
| Formula |
C₉H₁₂ |
| Synonyms |
ENB; 5-ethylidenebicyclo(2.2.1)-hept-2-ene; 5-ethylidene-2-norbornene [Note: Due to its reactivity, ENB may be stabilized with tert-butyl catechol.] |
| Physical Properties | |||
|---|---|---|---|
| Physical description | Colorless to white liquid with a turpentine-like odor. | ||
| Boiling point | 298°F | Molecular weight | 120.2 |
| Freezing point/melting point | -112°F | Vapor pressure | 4 mmHg |
| Flash point | 79°F | Vapor density | |
| Specific gravity | 0.90 | 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 | |||
| Monitoring Methods Used by OSHA | ||||||
|---|---|---|---|---|---|---|
| Analyte code (IMIS no.) | ||||||
| Sampling group | ||||||
| Sampler/Sampling media | ||||||
| Sampling time* | ||||||
| Sampling volume (TWA)* | ||||||
| Sampling flow rate (TWA)* | ||||||
| Sampling volume (STEL/Peak/C)* | ||||||
| Sampling flow rate (STEL/Peak/C)* | ||||||
| Analytical method instruments | ||||||
| Method reference | ||||||
| Notes | ||||||
| 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 Method | |
|---|---|
| Sampler/Sampling media | |
| Bulk Method |
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| On-Site Screening Techniques | ||||||
|---|---|---|---|---|---|---|
| Device | ||||||
| Model/Type | ||||||
|
Sampling information (see manufacturer instructions) |
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| Exposure Limits | |||||||
|---|---|---|---|---|---|---|---|
|
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 | TLV-TWA |
2 ppm [2013] |
PEL-TWA |
|
||
| PEL-STEL | REL-STEL |
|
TLV-STEL |
4 ppm [2013] |
PEL-STEL |
|
|
| PEL-C | REL-C |
5 ppm (25 mg/m³) |
TLV-C |
|
PEL-C |
5 ppm (25 mg/m³) |
|
| Skin notation |
NA |
Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
|
Notes:
Not established |
Notes:
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Notes:
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Notes:
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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:
0.2 ppm/100 ppm/500 ppm |
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| Additional Resources and Literature References |
|---|
|
NOAA: CAMEO Chemicals - Ethylidene norbornene NIOSH: Pocket Guide to Chemical Hazards - Ethylidene norbornene Literature References
|
Last Updated Date : 01/28/2021