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O-METHYLCYCLOHEXANONE†
| CAS # | 583-60-8 |
|---|---|
| Formula |
CH₃C₆H₉O |
| Synonyms |
2-methylcyclohexanone |
| Physical description | Colorless liquid with a weak, peppermint-like odor. | ||
|---|---|---|---|
| Boiling point | 329°F | Molecular weight | 112.2 |
| Freezing point/melting point | 6.8°F | Vapor pressure | 1 mmHg |
| Flash point | 118°F | Vapor density | |
| Specific gravity | 0.93 | Ionization potential | |
| Lower explosive limit (LEL) | Upper explosive limit (UEL) | ||
| NFPA health rating | 2 | NFPA fire rating | 2 |
| NFPA reactivity rating | 0 | NFPA special instruction | |
| Vapor hazard ratio (VHR) | |||
| Historical exceedance percentage | |||
| Target organs | |||
| Analyte code (IMIS no.) | 1765 |
|---|---|
| Sampling group | |
| Sampler/Sampling media | Porapak Q tube (150/75 mg) [SKC 226-115] |
| Sampling time* | |
| Sampling volume (TWA)* | 1-6 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 | NIOSH 2521 (fully 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 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 |
100 ppm (460 mg/m³) |
REL-TWA |
50 ppm (230 mg/m³) |
TLV-TWA |
50 ppm [1970] |
PEL-TWA |
50 ppm (230 mg/m³) |
| PEL-STEL |
|
REL-STEL |
75 ppm (345 mg/m³) |
TLV-STEL |
75 ppm [1970] |
PEL-STEL |
75 ppm (345 mg/m³) |
| PEL-C |
|
REL-C |
|
TLV-C |
|
PEL-C |
|
| Skin notation |
Y |
Skin notation |
Y |
Skin notation |
Y |
Skin notation |
Y |
| Notes: |
Notes:
|
Notes:
|
Notes:
|
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| Health factors: See NIH-NLM PubChem. | IDLH |
600 ppm |
|||||
| Carcinogenic classifications: Not listed |
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
|
NOAA: CAMEO Chemicals - O-Methylcyclohexanone NIOSH: Pocket Guide to Chemical Hazards - o-Methylcyclohexanone Literature References
|
Last Updated Date : 01/12/2023