Editing Copper(I) oxide (section)

==Properties==
Like all copper(I) compounds, cuprous oxide is [[diamagnetic]].  It does not readily hydrate to [[cuprous hydroxide]].

Copper(I) oxide dissolves in concentrated [[ammonia]] solution to form the colourless [[complex (chemistry)|complex]] [Cu(NH<sub>3</sub>)<sub>2</sub>]<sup>+</sup>, which is easily [[redox|oxidized]] in air to the blue [Cu(NH<sub>3</sub>)<sub>4</sub>(H<sub>2</sub>O)<sub>2</sub>]<sup>2+</sup>. 

Cuprous oxide is attacked by acids. [[Hydrochloric acid]] gives the [[chloride complex]] {{chem|CuCl|2|-}}.  [[Sulfuric acid]] and [[nitric acid]] produce [[copper(II) sulfate]] and [[copper(II) nitrate]], respectively.<ref>D. Nicholls, ''Complexes and First-Row Transition Elements'', Macmillan Press, London, 1973.</ref>