β-PROPIOLACTONE‡
| CAS # | 57-57-8 |
|---|---|
| Formula |
C₃H₄O₂ |
| Synonyms |
BPL; hydroacrylic acid, β-lactone; 3-hydroxy-β-lactone; 3-hydroxy-propionic acid; β-lactone; 2-oxetanone; 3-propiolacetone |
| Physical description | Colorless liquid with a slightly sweet odor. | ||
|---|---|---|---|
| Boiling point | 323°F (decomposes) | Molecular weight | 72.1 |
| Freezing point/melting point | -28°F | Vapor pressure | 3 mmHg at 77°F |
| Flash point | 165°F | Vapor density | 2.5 |
| Specific gravity | 1.15 | Ionization potential | |
| Lower explosive limit (LEL) | 2.9% | Upper explosive limit (UEL) | |
| NFPA health rating | 0 | NFPA fire rating | 2 |
| NFPA reactivity rating | 0 | NFPA special instruction | |
| Vapor hazard ratio (VHR) | |||
| Historical exceedance percentage | |||
| Target organs | |||
| 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 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 |
Ca |
REL-TWA | TLV-TWA |
0.5 ppm [1992] |
PEL-TWA |
0.5 ppm (1.5 mg/m³) |
|
| PEL-STEL | REL-STEL | TLV-STEL | PEL-STEL | ||||
| PEL-C | REL-C | TLV-C | PEL-C | ||||
| Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
| Notes: |
Notes:
CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A. |
Notes: |
Notes:
See California Code of Regulations, Title 8, Section 5209. Carcinogens. |
||||
| Health factors: See NIH-NLM PubChem. | IDLH | ||||||
| Carcinogenic classifications: IARC-2B, NIOSH-Ca, NTP-R, OSHA-Ca, TLV-A3 |
Notes:
Ca |
||||||
| AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: | |||||||
Additional Resources and Literature References
|
NOAA: CAMEO Chemicals - β-Propiolactone NIOSH: Pocket Guide to Chemical Hazards - β-Propiolactone Literature References
|
Last Updated Date : 01/28/2021