Paper, 'Note on the development of voltaic electricity by atmospheric oxidation' by C R [Charles Romley] Alder Wright and C Thompson

Description

Wright and Thompson write: 'It is well known that when metallic copper is brought into contact simultaneously with atmospheric air and aqueous solution of ammonia, rapid oxidation is set up, the copper oxide formed dissolving in the liquid, producing a blue solution of ammoniacal cupric oxide, or cuprammonium hydroxide. Whilst investigating processes for the manufacture of this fluid (now used commercially on a considerable scale) we noticed that if the air supply be greatly in deficiency relatively to the bulk of the copper, under certain conditions the solution is but little coloured, containing copper dissolved principally as cuprous, and not as cupric, oxide.'

Annotations in pencil and ink. Includes one diagram of experimental apparatus.

Subject: Chemistry / Physics

Received 10 March 1887. Read 31 March 1887.

A version of this paper was published in volume 42 of the Proceedings of the Royal Society as 'Note on the development of voltaic electricity by atmospheric oxidation'.

Reference number

PP/10/27

Earliest possible date

1887

Physical description

Ink and graphite pencil on paper

Page extent

10 pages

Format

Manuscript
Diagram