2-ETHYLHEXANOIC ACID
| Chemical Identification | |
|---|---|
| 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 | |||
|---|---|---|---|
| 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 | |
|---|---|
| Sampler/Sampling media |
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| Bulk Method |
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| On-Site Screening Techniques | ||||||
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| Device | ||||||
| Model/Type | ||||||
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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 |
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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:
|
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