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bis-Chloromethyl ether																				Related Pages
Synonyms & Trade Names
			BCME, Chloromethyl ether, bis-CME, 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 RELCa 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.													
										
Molecular Weight115.0	
	Boiling Point223°F
	Freezing Point-43°F
	SolubilityReacts
	Vapor Pressure(72°F): 30 mmHg
	Ionization Potential?											
Specific Gravity1.32	
	Flash Point<66°F
	Upper Explosive Limit?
	Lower Explosive Limit?
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****Escape:** (APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canisterAny appropriate escape-type, self-contained breathing apparatus**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
				Important additional information about respirator selection
See also
			INTRODUCTION
					  ICSC CARD: 0237
					  MEDICAL TESTS: 0026

			
							

			Page last reviewed:  October 30, 2019						Content
							source: 	National Institute for Occupational Safety and Health NIOSH Pocket Guide to Chemical Hazards
Introduction
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Chemical Names, Synonyms and Trade Names
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B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
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Y
Z
CAS Numbers
RTECS Numbers
Appendices
A – NIOSH Potential Occupational Carcinogens
B – Thirteen OSHA-Regulated Carcinogens
C – Supplementary Exposure Limits
D – Substances with No Established RELs
E – OSHA Respirator Requirements for Selected Chemicals
F – Miscellaneous Notes
G – 1989 Air Contaminants Update Project: Exposure Limits NOT in Effect
Type C & CE – Definitions for Type C and Type CE Respirators
Personal Protection and Sanitation Codes
First Aid Procedures Follow NIOSH Facebook
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