| http://www.w3.org/ns/prov#value | - The most suitable starting materials for preparing the initial reaction product of hydrazine and carbonyl compound according to the invention are bleaching lye and ammonia which are used as components for the Raschig process, but intermediate products already formed from the reaction between active chlorine and ammonia, e.g. chloramine, may also be used for the process according to the invention,
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