NIOSH Publication No. 2005-151:

NIOSH Pocket Guide to Chemical Hazards

September 2005

Phenyl ether (vapor)

CAS
101-84-8

C6H5OC6H5

RTECS
KN8970000
Synonyms & Trade Names

Diphenyl ether, Diphenyl oxide, Phenoxy benzene, Phenyl oxide
DOT ID & Guide

Exposure
Limits

NIOSH REL: TWA 1 ppm (7 mg/m3)
OSHA PEL: TWA 1 ppm (7 mg/m3)
IDLH
100 ppm See: 101848
Conversion
1 ppm = 6.96 mg/m3
Physical Description
Colorless, crystalline solid or liquid (above 82°F) with a geranium-like odor.
MW: 170.2
BP: 498°F
MLT: 82°F
Sol: Insoluble
VP(77°F): 0.02 mmHg
IP: 8.09 eV

Sp.Gr: 1.08
Fl.P: 239°F
UEL: 6.0%
LEL: 0.7%

Combustible Solid Class IIIB Combustible Liquid
Incompatibilities & Reactivities

Strong oxidizers
Measurement Methods
NIOSH 1617; OSHA PV2022
See: NMAM or OSHA Methods
Personal Protection & Sanitation
(See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: No recommendation

First Aid
(See procedures)
Eye: Irrigate immediately
Skin: Soap wash promptly
Breathing: Respiratory support

Respirator Recommendations
NIOSH/OSHA
Up to 25 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode
(APF = 25) Any powered air-purifying respirator with an organic vapor cartridge in combination with a high-efficiency particulate filter.
Up to 50 ppm:
(APF = 50) Any air-purifying full-facepiece respirator equipped with organic vapor cartridge(s) in combination with an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters.
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister having an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters.
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece
Up to 100 ppm:
(APF = 2000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
Emergency or planned entry into unknown concentrations or IDLH conditions:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus
Escape:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister having an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters./Any appropriate escape-type, self-contained breathing apparatus
Important additional information about respirator selection
Exposure Routes
inhalation, skin and/or eye contact
Symptoms
Irritation eyes, nose, skin; nausea
Target Organs
Eyes, skin, respiratory system
See also: INTRODUCTION   See ICSC CARD: 0791