| http://www.w3.org/ns/prov#value | - However, preferably used solvents are, for example, a lower alkyl ketone such as methyl ethyl ketone and methyl isobutyl ketone, a lower aliphatic alcohol ester of a lower fatty acid such as ethyl acetate, butyl acetate and butyl propionate, an aromatic hydrocarbon such as benzene, toluene and xylene, a lower aliphatic alcohol such as ethanol, propanol and butanol, a lower alicyclic alcohol such a
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