| http://www.w3.org/ns/prov#value | - The organic solvent may be a monohydric alcohol containing up to 4 carbon atoms, such as methanol, ethanol, n-propanol, iso-propanol or t-butanol; a water-soluble heterocyclic organic compound having a S-membered ring which may be substituted with oxygen, a hydroxyl radical or an alkyl radical containing up to 4 carbon atoms, such as N-methyl pyrrolidone, 1,3-0xazol-2-0ne, tetrahydrofuran and tetr
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