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O-CHLOROSTYRENE
| CAS # | 2039-87-4 |
|---|---|
| Formula |
C₈H₇Cl |
| Synonyms |
2-chlorostyrene; ortho-chlorostyrene; 1-chloro-2-ethenylbenzene |
| Physical description | Colorless liquid. | ||
|---|---|---|---|
| Boiling point | 372°F | Molecular weight | 138.6 |
| Freezing point/melting point | -81.7°F | Vapor pressure | 0.96 mmHg at 77°F |
| Flash point | 138°F | Vapor density | |
| Specific gravity | 1.10 | 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.) | 0682 |
|---|---|
| Sampling group | |
| Sampler/Sampling media | CSC tube (100/50 mg) [SKC 226-01] |
| Sampling time* | |
| Sampling volume (TWA)* | 3 L |
| Sampling flow rate (TWA)* | 0.01-0.2 L/min |
| Sampling volume (STEL/Peak/C)* | |
| Sampling flow rate (STEL/Peak/C)* | |
| Analytical method instruments | GC-FID |
| Method reference | NIOSH 1003 (partially validated) |
| 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 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 |
|||||
|---|---|---|---|---|---|---|---|
| PEL-TWA | REL-TWA |
50 ppm (285 mg/m³) |
TLV-TWA |
50 ppm [1972] |
PEL-TWA |
50 ppm (285 mg/m³) |
|
| PEL-STEL | REL-STEL |
75 ppm (428 mg/m³) |
TLV-STEL |
75 ppm [1972] |
PEL-STEL |
75 ppm (428 mg/m³) |
|
| PEL-C | REL-C | TLV-C | PEL-C | ||||
| Skin notation |
NA |
Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
|
Notes:
Not established |
Notes: | Notes: | Notes: | ||||
| Health factors: See NIH-NLM PubChem. | IDLH | ||||||
| Carcinogenic classifications: Not listed | Notes: | ||||||
| AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: | |||||||
Additional Resources and Literature References
|
NOAA: CAMEO Chemicals - O-Chlorostyrene NIOSH: Pocket Guide to Chemical Hazards - o-Chlorostyrene Literature References
|
Last Updated Date : 01/07/2021