NIOSH Pocket Guide to Chemical Hazards

Dichloroethyl ether

CAS 111-44-4


RTECS KN0875000
Synonyms & Trade Names
bis(2-Chloroethyl)ether; 2,2'-Dichlorodiethyl ether; 2,2'-Dichloroethyl ether
DOT ID & Guide
1916 152


NIOSH REL: Ca TWA 5 ppm (30 mg/m3) ST 10 ppm (60 mg/m3) [skin] See Appendix A
OSHA PEL: TWA 15 ppm (90 mg/m3) [skin]
IDLH Ca [100 ppm] See: 111444 Conversion 1 ppm = 5.85 mg/m3
Physical Description
Colorless liquid with a chlorinated solvent-like odor.
MW: 143.0
BP: 352°F
FRZ: -58°F
Sol: 1%
VP: 0.7 mmHg
IP: ?

Sp.Gr: 1.22
Fl.P: 131°F
UEL: ?
LEL: 2.7%

Class II Combustible Liquid: Fl.P. at or above 100F and below 140F.
Incompatibilities & Reactivities
Strong oxidizers [Note: Decomposes in presence of moisture to form hydrochloric acid.]
Measurement Methods
NIOSH 1004; OSHA 7
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
Provide: Eyewash, Quick drench
First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash
Breathing: Respiratory support
Swallow: Medical attention immediately
Important additional information about respirator selection
Respirator Recommendations NIOSH
At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration:
(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
(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
Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms Irritation nose, throat, respiratory system; lacrimation (discharge of tears); cough; nausea, vomiting; in animals: pulmonary edema; liver damage; [potential occupational carcinogen]
Target Organs Eyes, respiratory system, liver

Cancer Site [in animals: liver tumors]
See also: INTRODUCTION   See ICSC CARD: 0417   See MEDICAL TESTS: 0075