SEC-BUTYL ALCOHOL (SEC-BUTANOL)†
| Chemical Identification | |
|---|---|
| CAS # | 78-92-2 |
| Formula |
C₄H₁₀O |
| Synonyms |
2-butanol; butylene hydrate; 2-hydroxybutane; methyl ethyl carbinol |
| Physical Properties | |||
|---|---|---|---|
| Physical description | Colorless liquid with a strong, pleasant odor. | ||
| Boiling point | 211°F | Molecular weight | 74.1 |
| Freezing point/melting point | -175°F | Vapor pressure | 12 mmHg |
| Flash point | 75°F | Vapor density | |
| Specific gravity | 0.81 | Ionization potential | 10.10 eV |
| Lower explosive limit (LEL) | 1.7% at 212°F | Upper explosive limit (UEL) | 9.8% at 212°F |
| NFPA health rating | 2 | NFPA fire rating | 3 |
| NFPA reactivity rating | 0 | NFPA special instruction | |
| Vapor hazard ratio (VHR) | |||
| Historical exceedance percentage | |||
| Target organs | |||
| Monitoring Methods Used by OSHA | ||||||
|---|---|---|---|---|---|---|
| Analyte code (IMIS no.) | 0461 | |||||
| Sampling group | OVSG-2 | |||||
| Sampler/Sampling media | 2 Anasorb 747 sampling tubes (6 mm glass tubes, the front tube contains 400 and the back 200 mg of sorbent) connected in series [SKC 226-82] | |||||
| Sampling time* | 240 min |
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| Sampling volume (TWA)* | 12 L |
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| Sampling flow rate (TWA)* | 0.05 L/min |
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| Sampling volume (STEL/Peak/C)* | ||||||
| Sampling flow rate (STEL/Peak/C)* | ||||||
| Analytical method instruments | GC-FID | |||||
| Method reference | OSHA 5001 (fully validated) | |||||
| Notes | Separate tubes and seal each after sampling. |
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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 | |
|---|---|
| Sampler/Sampling media | |
| Bulk Method |
|---|
| On-Site Screening Techniques | ||||||
|---|---|---|---|---|---|---|
| Device | Detector tube | Detector tube | ||||
| Model/Type | Gastec 115 | Matheson-Kitagawa 8014-189U | ||||
|
Sampling information (see manufacturer instructions) |
3 strokes, 1-150 ppm range, uncertainty 25% for 5-50 ppm, 16% for 50-150 ppm | 2 or 4 strokes, approx 4-300 ppm range | ||||
| 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 |
150 ppm (450 mg/m³) |
REL-TWA |
100 ppm (305 mg/m³) |
TLV-TWA |
100 ppm [2001] |
PEL-TWA |
100 ppm (305 mg/m³) |
| PEL-STEL | REL-STEL |
150 ppm (455 mg/m³) |
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: | Notes: | Notes: | ||||
| Health factors: See NIH-NLM PubChem. | IDLH |
2000 ppm |
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| Carcinogenic classifications: | Notes: | ||||||
| AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: | |||||||
| Additional Resources and Literature References |
|---|
|
NOAA: CAMEO Chemicals - Sec-Butyl alcohol NIOSH: Pocket Guide to Chemical Hazards - Sec-Butyl alcohol Literature References
|
Last Updated Date : 01/11/2021