CHLOROMETHYL METHYL ETHER†
Chemical Identification | |
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CAS # | 107-30-2 |
Formula |
C₂H₅ClO |
Synonyms |
chlorodimethyl ether; chloromethoxymethane; CMME; dimethylchloroether; methylchloromethyl ether |
Physical Properties | |||
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Physical description | Colorless liquid with an irritating odor. | ||
Boiling point | 138°F | Molecular weight | 80.5 |
Freezing point/melting point | -154°F | Vapor pressure | 192 mmHg at 70°F |
Flash point | 32°F (open cup) | Vapor density | |
Specific gravity | 1.06 | Ionization potential | 10.25 eV |
Lower explosive limit (LEL) | Upper explosive limit (UEL) | ||
NFPA health rating | 3 | NFPA fire rating | 3 |
NFPA reactivity rating | 2 | NFPA special instruction | |
Vapor hazard ratio (VHR) | |||
Historical exceedance percentage | |||
Target organs |
Monitoring Methods Used by OSHA | ||||||
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Analyte code (IMIS no.) | 2640 | |||||
Sampling group | ||||||
Sampler/Sampling media | Midget fritted glass bubbler (MFGB) containing 10 mL (Derivatizing reagent: 2,4,6-Trichlorophenol/Sodium methoxide) [Infrequently Requested Method - OSHA staff please contact SLTC before sampling 801-233-4900] | |||||
Sampling time* | ||||||
Sampling volume (TWA)* | 50 L |
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Sampling flow rate (TWA)* | 0.5 L/min |
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Sampling volume (STEL/Peak/C)* | ||||||
Sampling flow rate (STEL/Peak/C)* | ||||||
Analytical method instruments | GC-ECD | |||||
Method reference | OSHA 10 (fully validated) | |||||
Notes | derivatizing reagent: 16 g of 2,4,6-trichlorophenol and 4.4 g of sodium methoxide dissolved in 1 L methanol |
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Special requirements |
* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.
Wipe Method | |
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Sampler/Sampling media |
Bulk Method |
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On-Site Screening Techniques | ||||||
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Device | ||||||
Model/Type | ||||||
Sampling information (see manufacturer instructions) |
Exposure Limits | |||||||
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OSHA PEL
8-hour TWA (ST) STEL (C) Ceiling Peak |
NIOSH REL
Up to 10-hour TWA (ST) STEL (C) Ceiling |
ACGIH TLV©
8-hour TWA (ST) STEL (C) Ceiling |
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PEL-TWA |
Ca |
REL-TWA | TLV-TWA | PEL-TWA | |||
PEL-STEL | REL-STEL | TLV-STEL | PEL-STEL | ||||
PEL-C | REL-C | TLV-C | PEL-C | ||||
Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
Skin notation |
NA |
Notes:
See 29 CFR 1910.1006, Methyl chloromethyl ether and 29 CFR 1910.1003, 13 Carcinogens. |
Notes:
CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A |
Notes:
Exposure by all routes should be carefully controlled to levels as low as possible. [1979] |
Notes:
See California Code of Regulations, Title 8, Section 5209. Carcinogens. |
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Health factors: See NIH-NLM PubChem. | IDLH | ||||||
Carcinogenic classifications: IARC-1, NIOSH-Ca, NTP-K, OSHA-Ca, TLV-A2, EPA-A |
Notes:
Ca |
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AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
--/1 ppm/10 ppm |
Additional Resources and Literature References |
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NOAA: CAMEO Chemicals - Methyl chloromethyl ether NIOSH: Pocket Guide to Chemical Hazards - Methyl chloromethyl ether Literature References
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Last Updated Date : 12/21/2020