# NIOSH Pocket Guide to Chemical Hazards
Ethylene dichloride | CAS 107-06-2
ClCH2CH2Cl | RTECS KI0525000
Synonyms & Trade Names 1,2-Dichloroethane; Ethylene chloride; Glycol dichloride | DOT ID & Guide 1184 129
Exposure Limits | NIOSH REL: Ca TWA 1 ppm (4 mg/m3) ST 2 ppm (8 mg/m3) See Appendix A See Appendix C (Chloroethanes)
OSHA PEL†: TWA 50 ppm C 100 ppm 200 ppm [5-minute maximum peak in any 3 hours]
IDLH Ca [50 ppm] | Conversion 1 ppm = 4.05 mg/m3
Physical Description Colorless liquid with a pleasant, chloroform-like odor. [Note: Decomposes slowly, becomes acidic & darkens in color.]
MW: 99.0 | BP: 182°F | FRZ: -32°F | Sol: 0.9%
VP: 64 mmHg | IP: 11.05 eV |  | Sp.Gr: 1.24
Fl.P: 56°F | UEL: 16% | LEL: 6.2% |
Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F.
Incompatibilities & Reactivities Strong oxidizers & caustics; chemically-active metals such as magnesium or aluminum powder, sodium & potassium; liquid ammonia [Note: Decomposes to vinyl chloride & HCl above 1112°F.]
Measurement Methods NIOSH 1003; OSHA 3
Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet (flammable) Change: No recommendation Provide: Eyewash, Quick drench | First Aid (See procedures) Eye: Irrigate immediately Skin: Soap wash promptly 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, ingestion, skin absorption, skin and/or eye contact
Symptoms Irritation eyes, corneal opacity; central nervous system depression; nausea, vomiting; dermatitis; liver, kidney, cardiovascular system damage; [potential occupational carcinogen]
Target Organs Eyes, skin, kidneys, liver, central nervous system, cardiovascular system Cancer Site [in animals: forestomach, mammary gland & circulatory system cancer]
See also: INTRODUCTION