Diethyl Ether

CAS RN:60-29-7

Volatilization

The Henry's Law constant for diethyl ether is 1.23X10-3 atm-cu m/mole(1). This Henry's Law constant indicates that diethyl ether is expected to volatilize from water surfaces(2). Based on this Henry's Law constant, the estimated volatilization half-life from a model river (1 m deep, flowing 1 m/sec, wind velocity of 3 m/sec)(2) is approximately 3.1 hours(SRC). The estimated volatilization half-life from a model lake (1 m deep, flowing 0.05 m/sec, wind velocity of 0.5 m/sec)(2) is approximately 3.6 days(SRC). Diethyl ether's Henry's Law constant(1) indicates that volatilization from moist soil surfaces may occur(SRC). Volatilization of diethyl ether from dry soil surfaces is expected(SRC) based upon an extrapolated vapor pressure of 538 mm Hg(3).
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