SPECTRUM

Chemical Fact Sheet

Chemical Abstract Number (CAS #) 542881
CASRN 524-88-1
SynonymsBis(chloromethyl)ether
Methane, oxybis[chloro-
Dichloromethyl ether
Molecular FormulaC2H4Cl2O

Link to the National Library of Medicine's Hazardous Substances
Database for more details on this compound.

Use AS LAB REAGENT NO LONGER USED FOR CHLOROMETHYLATION IN INDUSTRY, BUT IS USED AS THE MONITORING INDICATOR FOR CHLOROMETHYL ETHER, BECAUSE OF ITS GREATER STABILITY IN WORKROOM AIR, AND AS AN INT IN SYNTHESIS OF/ ANIONIC EXCHANGE STRONG-BASE RESINS OF THE QUATERNARY AMMONIUM TYPE. RESEARCH CHEMICAL This cmpd is used as an alkylating agent in the manufacture of polymers.
Apparent Color COLORLESS LIQUID
Odor Suffocating odor
Boiling Point 106 DEG C
Melting Point -41.5 DEG C
Molecular Weight 114.97
Density 1.323 @ 15 DEG C/4 DEG C
Sensitivity Data VAPOR IS STRONG IRRITANT TO EYES, RESPIRATORY TRACT. Harmful effects and symptoms: Local vapor is severely irritating to the skin and mucous membranes. Bis(chloromethyl) ether has an extremely suffocating odor even in minimal concentrations so that experience with acute poisoning is not available. It is not considered a respiratory irritant at concn of 10 ppm.
Environmental Impact Bis(chloromethyl) ether (BCME) might possibly enter the atmosphere in exhaust gases associated with the use of chloromethyl methyl ether in which BCME is a contaminant and as a chemical intermediate or in situations where it may be formed from hydrochloric acid and formaldehyde in the atmosphere. Due to its rapid rate of hydrolysis (half-life < 1 min), BCME would not be expected to persist in water. It is, however, relatively stable in air (estimated half-life < 1 day for photooxidation and > 18 hr for hydrolysis) and may therefore be an occupational contaminant if it escapes in exhaust gases or is formed in the work place.
Environmental Fate TERRESTRIAL FATE: The fate of bis(chloromethyl) ether in soil is unknown. However due to its rapid hydrolysis it would be expected to disappear rapidly from moist soil. AQUATIC FATE: Bis(chloromethyl) ether will rapidly disappear from any aquatic system by hydrolysis (half-life 10-38 sec)(1,2). The decomposition products are HCI and formaldehyde . ATMOSPHERIC FATE: The hydrolysis half-life of bis(chloromethyl) ether (BCME) in humid air is > 18 hr(1,2). However it is estimated that BCME will degrade by reaction with photochemically produced hydroxyl radicals (half-life < 4.1 day).
Drinking Water Impact DRINKING WATER: Identified not quantified in USA drinking water and New Orleans, LA drinking water . SURFACE WATER: USEPA STORET DATABASE 317 surface water data points, 0% pos . EFFL: USEPA STORET DATABASE, 977 effluent data points, 1.4% pos, median < 1.0 ug/l . Municipal solid waste leachate, WI, 5 sites, 20% pos, 250 ppb .

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