TERT-BUTYL ALCOHOL (TERT-BUTANOL)†
| Chemical Identification | |
|---|---|
| CAS # | 75-65-0 |
| Formula |
C₄H₁₀O |
| Synonyms |
2-methyl-2-propanol; trimethylcarbinol; TBA |
| Physical Properties | |||
|---|---|---|---|
| Physical description | Colorless solid or liquid (above 77°F) with a camphor-like odor. | ||
| Boiling point | 180°F | Molecular weight | 74.14 |
| Freezing point/melting point | 78°F | Vapor pressure | 42 mmHg at 77°F |
| Flash point | 52°F | Vapor density | 2.55 |
| Specific gravity | 0.78 at 78.8°F | Ionization potential | 9.70 eV |
| Lower explosive limit (LEL) | 2.4% | Upper explosive limit (UEL) | 8% |
| 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.) | 0462 | |||||
| Sampling group | ||||||
| Sampler/Sampling media | CSC tube (100/50 mg) [SKC 226-01] | |||||
| Sampling time* | ||||||
| Sampling volume (TWA)* | 1-10 L |
|||||
| Sampling flow rate (TWA)* | 0.01-0.2 L/min |
|||||
| Sampling volume (STEL/Peak/C)* | ||||||
| Sampling flow rate (STEL/Peak/C)* | ||||||
| Analytical method instruments | GC-FID | |||||
| Method reference | NIOSH 1400 (partially validated) | |||||
| 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 | |
| Bulk Method |
|---|
| On-Site Screening Techniques | ||||||
|---|---|---|---|---|---|---|
| Device | Detector tube | |||||
| Model/Type | Gastec 102L | |||||
|
Sampling information (see manufacturer instructions) |
2 strokes, approx 0.05-1.2% 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 |
|||||
| PEL-TWA |
100 ppm (300 mg/m³) |
REL-TWA |
100 ppm (300 mg/m³) |
TLV-TWA |
100 ppm [1992] |
PEL-TWA |
100 ppm (300 mg/m³) |
| PEL-STEL | REL-STEL |
150 ppm (450 mg/m³) |
TLV-STEL | PEL-STEL |
150 ppm (450 mg/m³) |
||
| 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 |
1600 ppm |
|||||
| Carcinogenic classifications: TLV-A4 | Notes: | ||||||
| AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: | |||||||
| Additional Resources and Literature References |
|---|
|
NOAA: CAMEO Chemicals - Tert-Butyl alcohol NIOSH: Pocket Guide to Chemical Hazards - tert-Butyl alcohol Literature References
|
Last Updated Date : 01/12/2021