|Chemical Abstract Number (CAS #)||
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
|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
|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 .