health and safety plan solid waste management unit assessment

METHYL ETHYL KETONE 41-a
TABLE 41-1
EQUILIBRIUM PARTITIONING CALCULATIONS FOR METHYL ETHYL KETONE
IN MODEL ENVIRONMENTS=
Estimated Percent
Soil gf Total ii-s of Wzdcal in Each Comartment
; w
Unsaturated
topsgfi
25.C
at
15.2 84.3 0.5
Saturated
deep soild 0.4 99.6 s
4 Calculations based on Mackay's equilibrium partitioning model '
(34,35,36); see Introduction in Volume 1 for description of model
and environmental conditions chosen to represent an unsaturated
topsoil and saturated deep soil. Calculated percentages should be
considered as rough estimates and used only for general guidance.
b) Utilized estimated soil sorption coefficient: Koc - 0.94 (611).
c> Henry's law constant taken as 4.35 x 10Ss atm*m3/mo1 at 25'C
(1138).
d) Used sorption coefficient K - 0.001 Koc.
P
- increase with increasing soil organic matter content:
m increase slightly with decreasing temperature:
- increase moderately with increasing salinity of the soil
water; and
w decrease moderately with increasing dissolved organic matter
in the soil water.
No inform& specific to the adsorption of methyl ethyl ketone
in the environment was available. Methyl ethyl ketone is highly
soluble in water and its low values for log K and K suggest that
sorption to soils/sediments does not contribufz signiffcantly to its
environmental fate. Methyl ethyl ketone in the soil/ground-water
system is expected to bd only slightly less mobile than acetone, which
was reported to migrate freely with little or no retardation.
S/87