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ACETOIN
| CAS # | 513-86-0 |
|---|---|
| Formula |
C₄H₈O₂ |
| Synonyms |
acetyl methyl carbinol; 1-hydroxyethyl methyl ketone; γ-hydroxy-β-oxobutane; 3-hydroxy-2-butanone; 2,3-butanolone; dimethylketol |
| Physical description | A light-yellow colored liquid. | ||
|---|---|---|---|
| Boiling point | 298.4°F | Molecular weight | 88.1 |
| Freezing point/melting point | 59°F | Vapor pressure | 2.7x10 (est) |
| Flash point | 106°F | Vapor density | |
| Specific gravity | Ionization potential | ||
| Lower explosive limit (LEL) | Upper explosive limit (UEL) | ||
| NFPA health rating | NFPA fire rating | ||
| NFPA reactivity rating | NFPA special instruction | ||
| Vapor hazard ratio (VHR) | |||
| Historical exceedance percentage | |||
| Target organs | |||
| Analyte code (IMIS no.) | A624 |
|---|---|
| Sampling group | |
| Sampler/Sampling media | 2 Specially dried silica gel tubes in series; each tube has a single 600 mg section and a GFF, filter faces forward when sampling [SKC 226-183] |
| Sampling time* | 180 min |
| Sampling volume (TWA)* | 9 L |
| Sampling flow rate (TWA)* | 0.05 L/min |
| Sampling volume (STEL/Peak/C)* | 3 L |
| Sampling flow rate (STEL/Peak/C)* | 0.2 L/min |
| Analytical method instruments | GC-FID |
| Method reference | OSHA 1012 (fully validated) |
| Notes | Use an opaque tube holder or wrap tubes with aluminum foil or other opaque material while sampling!! Separate the 2 tubes and cap both ends of each tube as soon as possible after sampling. Individually seal the 2 tubes. |
| Special requirements | Protect tubes from light after sampling. |
* 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 | |||||
|---|---|---|---|---|---|
| Model/Type | |||||
|
Sampling information (see manufacturer instructions) |
|
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 | REL-TWA | TLV-TWA | PEL-TWA | ||||
| PEL-STEL | REL-STEL | TLV-STEL | PEL-STEL | ||||
| PEL-C | REL-C | TLV-C | PEL-C | ||||
| Skin notation |
NA |
Skin notation |
NA |
Skin notation |
NA |
Skin notation |
NA |
|
Notes:
Not established |
Notes:
Not established |
Notes:
Not established |
Notes:
Not established |
||||
| Health factors: See NIH-NLM PubChem. | IDLH | ||||||
| Carcinogenic classifications: Not listed | Notes: | ||||||
| AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: | |||||||
Additional Resources and Literature References
|
NOAA: CAMEO Chemicals - Acetyl methyl carbinol NIOSH: Pocket Guide to Chemical Hazards - Acetyl methyl carbinol Literature References
|
Last Updated Date : 12/15/2020