| http://www.w3.org/ns/prov#value | - At this stage it is believed that the reactivity of the B2O3 powders has been greatly reduced by coating and infiltrating the powders 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 (ethanol).
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