BIS(CHLOROMETHYL) ETHER‡
CAS # | 542-88-1 |
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Formula |
C₂H₄Cl₂O |
Synonyms |
BCME; bis-CME; chloromethyl ether; dichlorodimethyl ether; dichloromethyl ether; oxybis(chloromethane) |
Physical description | Colorless liquid with a suffocating odor. | ||
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Boiling point | 223°F | Molecular weight | 115 |
Freezing point/melting point | -43°F | Vapor pressure | 30 mmHg at 72°F |
Flash point | <66°F | Vapor density | |
Specific gravity | 1.32 | Ionization potential | |
Lower explosive limit (LEL) | Upper explosive limit (UEL) | ||
NFPA health rating | 4 | NFPA fire rating | 3 |
NFPA reactivity rating | 1 | NFPA special instruction | |
Vapor hazard ratio (VHR) | |||
Historical exceedance percentage | |||
Target organs |
Analyte code (IMIS no.) | 2630 | ||
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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 801-233-5100] | ||
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 grams of 2,4,6-Trichlorophenol and 4.4 grams of Sodium Methoxide dissolved in 1 Liter of Methanol. OSHA personnel may obtain sampling solution from the SLTC.
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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 Sampler/Sampling media | |
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Bulk Method |
Device | |||||
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Model/Type | |||||
Sampling information (see manufacturer instructions) |
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 |
N |
Notes: |
Notes:
CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A and Appendix B - 13 OSHA-regulated carcinogens. |
Notes:
Visit the ACGIH TLV site for specific data |
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-A1, EPA-A |
Notes:
Ca |
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AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
--/0.1 ppm/0.5 ppm |
Additional Resources and Literature References
NOAA: CAMEO Chemicals - Dichlorodimethyl ether, symmetrical NIOSH: Pocket Guide to Chemical Hazards - bis-Chloromethyl ether Literature References
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Last Updated Date : 05/03/2024