SPECTRUM

Chemical Fact Sheet

Chemical Abstract Number (CAS #) 101144
CASRN 101-14-4
Synonyms4,4'-Methylenebis(2-chloroaniline)
Benzenamine, 4,4'-methylenebis[2chloro-
MOCA
Molecular FormulaC13H12Cl2N2

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

Use IN MANUFACTURE OF GUN MOUNTS, JET ENGINE TURBINE BLADES, RADAR SYSTEMS, AND COMPONENTS IN HOME APPLIANCES Curing agent for polyurethane elastomers. IN CURING URETHANE AND EPOXY RESINS & CROSSLINKING URETHANE FOAM.
Apparent Color TAN COLORED PELLETS
Melting Point 110 DEG C
Molecular Weight 267.15
Density 1.44
Environmental Impact 4,4'-Methylenebis(2-chloroaniline) may be released in wastewater and emissions during its manufacture and use in curing urethane and epoxy resins. If released on land it will adsorb strongly to soil, perhaps forming covalent bonds with humic materials. If released in water, it will strongly adsorb to sediment and particulate matter in the water column. Photolysis should occur in surface waters and reaction of the 4,4'-methylenebis(2-chloroaniline) with alkoxy radicals may be an important degradative process especially in eutropic waters. Volatilization from water or near surface soil should not be a significant loss process. Biodegradation may occur both in soil and water. 4,4'-Methylenebis(2-chloroaniline) should bioconcentrate to a moderate extent in aquatic organisms. 4,4'-Methylenebis(2-chloroaniline) emitted to the atmosphere will degrade due to photolysis and reaction with photochemically produced hydroxyl radicals (estimated half-life 13 hr in the vapor phase). Exposure to 4,4-methylenebis(2-chloroaniline) would occur mostly in the workplace.
Environmental Fate TERRESTRIAL FATE: If it is released to soil, 4,4'-methylenebis(2-chloroaniline) will bind very tightly to the soil and therefore, it should not leach to groundwater. It may form covalent bonds with humic material in soil . Biodegradation may also occur although it may be limited by strong adsorption to soil . Volatilization from near surface soil and hydrolysis will not be expected to occur . AQUATIC FATE: If released in water, 4,4'-methylenebis(2-chloroaniline) should adsorb to sediment and particulate matter in the water column and perhaps form covalent bonds to humic materials . Photolysis may occur in surface waters and oxidation by alkoxyradicals would be important in eutrophic waters (estimated half-life of 39-72 days)(2,3). Biodegradation may occur based upon the biodegradation observed in soil and activated sewage sludge studies . It will not be subject to volatilization from water or hydrolysis(6). ATMOSPHERIC FATE: If emitted to the atmosphere 4,4'-methylenebis(2-chloroaniline) will degrade by photolysis or reaction with photochemically produced hydroxyl radicals (estimated half-life 13 hr in the vapor phase ).
Drinking Water Impact GROUNDWATER: Deep water well under manufacturing plant in Adrian, MI 1.5 ppb . SURFACE WATER: Raisin River, Adrian, MI (near manufacturing plant), not detected (detection limit 0.1 ppb) . EFFL: Adrian, Michigan - surface runoff from industrial site 1 ppb . The concn of 4,4'methylenebis(2-chloroaniline) were 130-270 ppb in purge wells and seepage water near a waste disposal lagoon which receives wastes from the manufacture of the chemical .

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