Tf. S. Hunt on the Chemistry of Copper. 153 
Art. XVIIL — Contributions to the Chemistry of Copper; b 
T. Sterry Hunt, LL.D. F.RS. Parr e ” 
[Read before the American Association for the Advancement of Science at Salem, 
August 25, 1869.] * 
ats P 
property is shared by other soluble chlorids. The strong 
finity of cuprosum for chlorine enables cuprous oxyd to decom- 
and formation of cuprous chlorid. In the case of zinc and 
manganese, insoluble oxychlorids of these metals are formed 
at the same time. These reactions require further study, and 
the same may be said of the cupric and cobaltic chlorids with 
Cuprous oxyd. I have, however, partially investiga e be- 
havior of cuprous oxyd with magnesic and ferrous chlorids, 
and obtained the resulis about to be described. 
_, $8. The cuprous oxyd for these experiments was prepared 
__ by gently heating a solution of sulphate of ra mixed with 
» Cane and an excess of caustic soda, until the whole of the 
_ C0pper was thrown down as a bright dense cinnabar-red powder 
