Has anyone out there any ideas regarding what may have caused the copper strands to turn black?
43+ What Turns Copper Black. This is due to its reaction with the oxygen in the air forming black copper (ii) oxide. When the oxygen that it contacting the penny dissolves, the oxidation occurs and leaves the black color.
13 The Brown Surface Of Copper Becomes Black On Heating In Air When Hydrogen Gas Is Passed Over This Black Surface It Turns Begin Array Ll Text 1 Brown Text 2 from toppr-doubts-media.s3.amazonaws.com
The copper john went through several design changes over a period of about three years beginning in 1993. The copper strands haven't been tinned and the wires in question go to internal and external devices (lights). Eggs that are exposed to the air for a period of time tend to be darker.
Obviously it's a chemistry trick but still impressive.
As time goes on, though, it might start turning brown and then black. In the few months that we have had them in our flock, i've noticed that they get along very well with the other chickens. The black copper marans are said to be quiet and gentle although the roosters can have a tendency to be confrontational with other roosters. The final stage of patination occurs.
