| http://www.w3.org/ns/prov#value | - The process according to the invention is generally carried out in a (70:30)-(5:95) mixture of water and an aliphatic alcohol having from 1 to 6 carbon atoms, e.g. methanol, ethanol, n-propanol, isopropanol, n-butanol, sec.-butanol, tert.-butanol, etc.
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