Assertion: hydrocyanic acid | /r/HasProperty | obtained by dehydrating formamide
Facets:
Source sentences:
text: A preparation process for preparing solutions of cyanide salts starting from hydrocyanic acid which has been obtained by dehydrating formamide is not disclosed in EP-A 0 209 039, DE-A 101 385 53 and WO 2004/050587.