| http://www.w3.org/ns/prov#value | - These preferably include alkali metal hydroxides such as, for example, sodium or potassium hydroxide, or alkali metal carbonates such as sodium or potassium carbonate, or alkali metal alcoholates such as, for example, sodium or potassium methanolate, or sodium or potassium ethanolate, or organic amines such as triethylamine, picoline or N-methylpiperidine, or amides such as sodium amide or lithium
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