Itchy
Field Bee
- Joined
- Aug 28, 2013
- Messages
- 766
- Reaction score
- 1
- Location
- Surrey
- Hive Type
- National
- Number of Hives
- Lost count and can't keep up
The green is copper oxide
Never, since I was at school - and that was forty years ago!. Copper oxide is black normally. That would be the usual oxidation state of +2. Cuprous oxide would be reddish.
Copper carbonate is the usual culprit for the green colour.
You're right, I stand corrected. Verdigris.