ACETYLACETONE (2,4-PENTANEDIONE)
Chemical Identification | |
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CAS # | 123-54-6 |
Formula |
C₅H₈O₂ |
Synonyms |
2,4-pentanedione; acetoacetone; diacetyl methane |
Physical Properties | |||
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Physical description | A colorless or yellow colored liquid. | ||
Boiling point | 284.7°F | Molecular weight | 100.12 |
Freezing point/melting point | -10.3°F | Vapor pressure | |
Flash point | 93°F | Vapor density | |
Specific gravity | 0.975 | Ionization potential | |
Lower explosive limit (LEL) | 2.4% | Upper explosive limit (UEL) | 11.6% |
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 | ||||||
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Analyte code (IMIS no.) | A178 | |||||
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 | OSHA staff only, please contact SLTC at 801-233-4900 |
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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 Method | |
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Sampler/Sampling media |
Bulk Method |
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On-Site Screening Techniques | ||||||
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Device | ||||||
Model/Type | ||||||
Sampling information (see manufacturer instructions) |
Exposure Limits | |||||||
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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 |
25 ppm [2010] |
PEL-TWA | |||
PEL-STEL | REL-STEL | TLV-STEL | PEL-STEL | ||||
PEL-C | REL-C | TLV-C | PEL-C | ||||
Skin notation |
NA |
Skin notation |
NA |
Skin notation |
Y |
Skin notation |
NA |
Notes:
Not established |
Notes:
Not established |
Notes: |
Notes:
Not established |
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Health factors: See NIH-NLM PubChem. | IDLH | ||||||
Carcinogenic classifications: | Notes: | ||||||
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: |
Additional Resources and Literature References |
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NOAA: CAMEO Chemicals - Pentane-2,4-dione NIOSH: Pocket Guide to Chemical Hazards - Pentane-2,4-dione Literature References
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Last Updated Date : 12/15/2020