It is important as a constituent of German silver, an alloy much used
for resistance coils.
Nickel, Bath.
A bath for the electro-deposition of nickel. A great many
formulae have been given. Metallic nickel is dissolved in 1 vol.
sulphuric acid mixed with 2 vols. water. Neutralize with ammonia, and
add of ammonium sulphate one-half the weight of metallic nickel
originally used; 135 parts of nickel will be enough for a bath of 10,000
parts.