| http://www.w3.org/ns/prov#value | - At this stage it is, believed that the effective surface area and large absorptivity of the carbon powders has been greatly reduced by coating and infiltrating the pores with a polymeric layer of PVOH. Although polyvinyl alcohol, (PVOH) is readily soluble in water, it is much less soluble in solvents such as xylene and ethyl alcohol.
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