2-ETHYLHEXANOIC ACID
Chemical Identification | |
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CAS # | 149-57-5 |
Formula |
C₈H₁₆O₂ |
Synonyms |
⍺-ethylcaproic acid; ⍺-ethylhexanoic acid; 2-bubylbutanoic acid; butylethylacetic acid; 2-ethyl-1-hexanoic acid; 2-ethylcaproic acid; ethylhexanoic acid; ethylhexoic acid |
Physical Properties | |||
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Physical description | A colorless to light yellow liquid with a mild odor. | ||
Boiling point | 442°F | Molecular weight | 144.21 |
Freezing point/melting point | -117°F | Vapor pressure | |
Flash point | 260°F | Vapor density | |
Specific gravity | 0.903 | Ionization potential | |
Lower explosive limit (LEL) | 1.04% at 275°F | Upper explosive limit (UEL) | 8.64% at 370.4°F |
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.) | ||||||
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 | |
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Sampler/Sampling media |
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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 |
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REL-TWA |
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TLV-TWA |
5 mg/m³ (inhalable fraction and vapor), [2006] |
PEL-TWA |
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PEL-STEL |
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REL-STEL |
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TLV-STEL |
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PEL-STEL |
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PEL-C |
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REL-C |
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TLV-C |
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PEL-C |
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Skin notation |
NA |
Skin notation |
NA |
Skin notation |
N |
Skin notation |
NA |
Notes:
Not established |
Notes:
Not established |
Notes:
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Notes:
Not established |
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Health factors: See NIH-NLM PubChem. | IDLH | ||||||
Carcinogenic classifications: |
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 - Ethylhexoic acid NIOSH: Pocket Guide to Chemical Hazards - Ethylhexoic acid Literature References
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Last Updated Date : 12/15/2020