Lapse in Appropriations
For workplace safety and health, please call 800-321-6742; for mine safety and health, please call 800-746-1553; for Job Corps, please call 800-733-5627 and for Wage and Hour, please call 866-487-9243 (866-4-US-WAGE). This website is currently not being updated due to the suspension of Federal government services. The last update to the site was 10/1/2025. Updates to the site will start again when the Federal government resumes operations.
PHENYL ETHER (VAPOR)†
| CAS # | 101-84-8 |
|---|---|
| Formula |
C₁₂H₁₀O |
| Synonyms |
diphenyl ether; diphenyl oxide; phenoxy benzene; phenyl oxide |
| Physical description | Colorless, crystalline solid or liquid (above 82°F) with a geranium-like odor. | ||
|---|---|---|---|
| Boiling point | 498°F | Molecular weight | 170.2 |
| Freezing point/melting point | 82°F | Vapor pressure | 0.02 mmHg at 77°F |
| Flash point | 239°F | Vapor density | |
| Specific gravity | 1.08 | Ionization potential | 8.09 eV |
| Lower explosive limit (LEL) | 0.7% | Upper explosive limit (UEL) | 1.5% |
| NFPA health rating | 1 | NFPA fire rating | 1 |
| NFPA reactivity rating | 0 | NFPA special instruction | |
| Vapor hazard ratio (VHR) | |||
| Historical exceedance percentage | |||
| Target organs | |||
| Analyte code (IMIS no.) | 2047 |
|---|---|
| Sampling group | |
| Sampler/Sampling media | XAD-7 tube (100/50 mg) [SKC 226-95] |
| Sampling time* | 100 min |
| Sampling volume (TWA)* | 20 L |
| Sampling flow rate (TWA)* | 0.2 L/min |
| Sampling volume (STEL/Peak/C)* | |
| Sampling flow rate (STEL/Peak/C)* | |
| Analytical method instruments | GC-FID |
| Method reference | OSHA PV2022 (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 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 |
1 ppm (7 mg/m³) |
REL-TWA |
1 ppm (7 mg/m³) |
TLV-TWA |
1 ppm [1979] |
PEL-TWA |
1 ppm (7 mg/m³) |
| PEL-STEL |
|
REL-STEL |
|
TLV-STEL |
2 ppm [1979] |
PEL-STEL |
|
| PEL-C |
|
REL-C |
|
TLV-C |
|
PEL-C |
|
| Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
|
Notes:
This OSHA PEL is also applies to phenyl ether-biphenyl mixture vapors. See 29 CFR 1910.1000 Table Z-1. |
Notes:
|
Notes:
|
Notes:
|
||||
| Health factors: See NIH-NLM PubChem. | IDLH |
100 ppm |
|||||
| Carcinogenic classifications: Not listed |
Notes:
|
||||||
|
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
|
|||||||
Additional Resources and Literature References
|
NOAA: CAMEO Chemicals - Diphenyl oxide NIOSH: Pocket Guide to Chemical Hazards - Phenyl ether (vapor) Literature References
|
Last Updated Date : 01/28/2021