... or light yellow transparent liquid, there is a strong irritant. Odor melting point (c):-45Relative density (water = 1):0. ... color, was water white to pale yellow, with strong pungent odor. And air mixture explosion limit 3.2% ~ 9.0 ... cyanoacetic acid spot. It cyclohexylidene cyanoacetic acid then, by eliminating the decarboxylation of Cyclohexene to acetonitrile, finally obtained by hydrogenation ...