# NIOSH Pocket Guide to Chemical Hazards
Dichloroethyl ether | CAS 111-44-4
(ClCH2CH2)2O | RTECS KN0875000
Synonyms & Trade Names bis(2-Chloroethyl)ether; 2,2'-Dichlorodiethyl ether, 2,2'-Dichloroethyl ether | DOT ID & Guide 1916 152
Exposure Limits | 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] | 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 100°F and below 140°F.
Incompatibilities & Reactivities Strong oxidizers [Note: Decomposes in presence of moisture to form hydrochloric acid.]
Measurement Methods NIOSH 1004; OSHA 7
Personal Protection & Sanitation 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
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 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
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