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ETHYL ALCOHOL (ETHANOL)†
| CAS # | 64-17-5 | 
|---|---|
| Formula | C₂H₆O | 
| Synonyms | ethanol; alcohol; ETOH; methyl carbinol; ethyl hydrate; grain alcohol | 
| Physical description | Clear, colorless liquid with a weak, ethereal, vinous odor. | ||
|---|---|---|---|
| Boiling point | 173°F | Molecular weight | 46.1 | 
| Freezing point/melting point | -173°F | Vapor pressure | 44 mmHg | 
| Flash point | 55°F | Vapor density | 1.59 | 
| Specific gravity | 0.79 | Ionization potential | 10.47 eV | 
| Lower explosive limit (LEL) | 3.3% | Upper explosive limit (UEL) | 19% | 
| NFPA health rating | 2 | NFPA fire rating | 3 | 
| NFPA reactivity rating | 0 | NFPA special instruction | |
| Vapor hazard ratio (VHR) | |||
| Historical exceedance percentage | |||
| Target organs | |||
| Analyte code (IMIS no.) | 1060 | 
|---|---|
| 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], tube holder [SKC 222-3L-1], Type D cover [SKC 224-29D] | 
| Sampling time* | 240 min | 
| Sampling volume (TWA)* | 12 L | 
| Sampling flow rate (TWA)* | 0.05 L/min | 
| Sampling volume (STEL/Peak/C)* | |
| Sampling flow rate (STEL/Peak/C)* | |
| Analytical method instruments | GC-FID | 
| Method reference | OSHA 5001 (fully validated) | 
| Notes | Separate and seal each tube after sampling. | 
| 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 Sampler/Sampling media | 
 | 
|---|---|
| Bulk Method | 
 | 
| Device | Detector tube | Detector tube | Detector tube | CMS Chip | 
|---|---|---|---|---|
| Model/Type | Dräger - Alcohol 25/a, 8101631 | Gastec 112 | Matheson-Kitagawa 8014-104SA | Ethanol, 100-2500 ppm range | 
| Sampling information (see manufacturer instructions) | 10 strokes; approx 10-2000 ppm range; uncertainty approx 41% | 0.5-2 strokes; 0.004-7.5% range; uncertainty 25% for 0.05-0.5%, 16% for 0.5-2.5% | 1 stroke; approx 0.02-5% range | 
| 
                                  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 | 1000 ppm (1900 mg/m³) | REL-TWA | 1000 ppm (1900 mg/m³) | TLV-TWA | 
 | PEL-TWA | 1000 ppm (1900 mg/m³) | 
| PEL-STEL | 
 | REL-STEL | 
 | TLV-STEL | 1000 ppm [2008] | 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 | 3300 ppm | |||||
| Carcinogenic classifications: TLV-A3 | Notes: 10% of LEL | ||||||
| AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: 1800 ppm/3300 ppm/-- | |||||||
Additional Resources and Literature References
| NOAA: CAMEO Chemicals - Ethanol NIOSH: Pocket Guide to Chemical Hazards - Ethyl alcohol Literature References 
 | 
Last Updated Date : 06/14/2023
