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bis-Chloromethyl ether

Synonyms & Trade Names
BCME, bis-CME, Chloromethyl ether, Dichlorodimethyl ether, Dichloromethyl ether, Oxybis(chloromethane)
CAS No.
542-88-1
RTECS No.
KN1575000
DOT ID & Guide
2249 131
Formula
(CH2Cl)2O
Conversion
IDLH
Ca [N.D.]
See: IDLH INDEX
Exposure Limits
NIOSH REL
: Ca See Appendix A
OSHA PEL
: [1910.1008] See Appendix B
Measurement Methods

OSHA 10
See: NMAM or OSHA Methods
Physical Description
Colorless liquid with a suffocating odor.
MW:
115.0
BP:
223°F
FRZ:
-43°F
Sol:
Reacts		 VP(72°F): 30 mmHg
IP:
?
Sp.Gr:
1.32
Fl.P:
<66°F
UEL:
?
LEL:
?
Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F.
Incompatibilities & Reactivities
Acids, water [Note: Reacts with water to form hydrochloric acid & formaldehyde.]
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, mucous membrane, respiratory system; pulmonary congestion, edema; corneal damage, necrosis; decreased pulmonary function, cough, dyspnea (breathing difficulty), wheezing; blood-stained sputum, bronchial secretions; [potential occupational carcinogen]
Target Organs
Eyes, skin, respiratory system
Cancer Site
[lung cancer]
Personal Protection/Sanitation
(See protection codes)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated/Daily
Remove: When wet (flammable)
Change: Daily
Provide: Eyewash, Quick drench
First Aid
(See procedures)
Eye: Irrigate immediately
Skin: Soap wash immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
Respirator Recommendations

(See Appendix E)

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

Important additional information about respirator selection

See also: INTRODUCTION   See ICSC CARD: 0237   See MEDICAL TESTS: 0026
 

Order NIOSH Publications

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