Chloromethyl methyl ether
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CAS
107-30-2
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CH3OCH2Cl
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RTECS
KN6650000
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Synonyms & Trade Names
Chlorodimethyl ether, Chloromethoxymethane, CMME, Dimethylchloroether, Methylchloromethyl ether
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DOT ID & Guide
1239 / 131
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Exposure
Limits
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NIOSH REL: Ca See Appendix A
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OSHA PEL: [1910.1006] See Appendix B
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IDLH
Ca [N.D.]
See: IDLH INDEX
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Conversion
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Physical Description
Colorless liquid with an irritating odor.
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MW: 80.5
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BP: 138°F
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FRZ: -154°F
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Sol: Reacts
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VP(70°F): 192 mmHg
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IP: 10.25 eV
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Sp.Gr: 1.06
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Fl.P(oc): 32°F
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UEL: ?
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LEL: ?
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Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F.
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Incompatibilities & Reactivities
Water [Note: Reacts with water to form hydrochloric acid & formaldehyde.]
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Measurement Methods
NIOSH P&CAM220 (II-1); OSHA 10
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated/Daily
Remove: When wet (flammable)
Change: Daily
Provide: Eyewash, Quick drench
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
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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
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Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
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Symptoms
Irritation eyes, skin, mucous membrane; pulmonary edema, pulmonary congestion, pneumonitis; skin burns, necrosis; cough, wheezing, pulmonary congestion; blood stained-sputum; weight loss; bronchial secretions; [potential occupational carcinogen]
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Target Organs
Eyes, skin, respiratory system
Cancer Site
[in animals: skin & lung cancer]
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See also: INTRODUCTION
See ICSC CARD: 0238 See MEDICAL TESTS: 0048
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