NIOSH Publication No. 2005-151:

NIOSH Pocket Guide to Chemical Hazards

September 2005

Ethyl ether

CAS
60-29-7

C2H5OC2H5

RTECS
KI5775000
Synonyms & Trade Names

Diethyl ether, Diethyl oxide, Ethyl oxide, Ether, Solvent ether
DOT ID & Guide
1155 / 127

Exposure
Limits

NIOSH REL: See Appendix D
OSHA PEL: TWA 400 ppm (1200 mg/m3)
IDLH
1900 ppm [10%LEL] See: 60297
Conversion
1 ppm = 3.03 mg/m3
Physical Description
Colorless liquid with a pungent, sweetish odor. [Note: A gas above 94°F.]
MW: 74.1
BP: 94°F
FRZ: -177°F
Sol: 8%
VP: 440 mmHg
IP: 9.53 eV

Sp.Gr: 0.71
Fl.P: -49°F
UEL: 36.0%
LEL: 1.9%

Class IA Flammable Liquid: Fl.P. below 73F and BP below 100F.
Incompatibilities & Reactivities

Strong oxidizers, halogens, sulfur, sulfur compounds [Note: Tends to form explosive peroxides under influence of air and light.]
Measurement Methods
NIOSH 1610; OSHA 7
See: NMAM or OSHA Methods
Personal Protection & Sanitation
(See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: No recommendation
Remove: When wet (flammable)
Change: No recommendation

First Aid
(See procedures)
Eye: Irrigate immediately
Skin: Water wash promptly
Breathing: Respiratory support
Swallow: Medical attention immediately
Respirator Recommendations
OSHA
Up to 1900 ppm:
(APF = 10) Any chemical cartridge respirator with organic vapor cartridge(s)*
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister
(APF = 25) Any powered, air-purifying respirator with organic vapor cartridge(s)*
(APF = 10) Any supplied-air respirator*
(APF = 50) Any self-contained breathing apparatus with a full facepiece
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/Any appropriate escape-type, self-contained breathing apparatus
Important additional information about respirator selection
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
Irritation eyes, skin, upper respiratory system; dizziness, drowsiness, headache, excited, narcosis; nausea, vomiting
Target Organs
Eyes, skin, respiratory system, central nervous system
See also: INTRODUCTION   See ICSC CARD: 0355   See MEDICAL TESTS: 0095