CAS RN: 121-75-5


The Henry's Law constant for malathion is reported as 4.89X10-9 atm-cu m/mole(1). This Henry's Law constant indicates that malathion is expected to be essentially nonvolatile from water and moist soil surfaces(2). Malathion is not expected to volatilize from dry soil surfaces(SRC) based upon a vapor pressure of 3.97X10-5 mm Hg(3).
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