Chloromethyl methyl ether |
Synonyms & Trade Names Chlorodimethyl ether, Chloromethoxymethane, CMME, Dimethylchloroether, Methylchloromethyl ether |
CAS No. 107-30-2 |
RTECS No. KN6650000 |
DOT ID & Guide 1239 131 |
FormulaCH3OCH2Cl |
Conversion |
IDLH Ca [N.D.]
See: IDLH INDEX |
Exposure Limits NIOSH REL: Ca See Appendix A
OSHA PEL: [1910.1006] See Appendix B |
Measurement Methods
NIOSH P&CAM220 (II-1);
OSHA 10
See: NMAM or OSHA Methods |
Physical Description Colorless liquid with an irritating odor. |
MW: 80.5 |
BP: 138°F |
FRZ: -154°F |
Sol: Reacts |
VP(70°F): 192 mmHg |
IP: 10.25 eV |
Sp.Gr: 1.06 |
Fl.P(oc): 32°F |
UEL: ? |
LEL: ? |
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| Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F. |
Incompatibilities & Reactivities 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; pulmonary edema, pulmonary congestion, pneumonitis; skin burns, necrosis; cough, wheezing, pulmonary congestion; blood stained-sputum; weight loss; bronchial secretions; [potential occupational carcinogen] |
Target Organs Eyes, skin, respiratory system |
Cancer Site[in animals: skin & 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: 0238 See MEDICAL TESTS: 0048 |
