I want to experiment with copper salts that are soluble in oil. The purpose is for outdoor wood preservation, sort of like pressure treated wood.
I know they exist, but I can't quite find the information I need to make it.
Through wild experimentation I've managed to find one way of making it react with candle wax. I can't say for sure if it's paraffin or stearic acid
candles. Copper oxide seems to react with said molten candle wax at ~200°C if oxygen is available. It dissolves and the solution becomes classic
copper blue. That's a step in the right direction, though I'd ideally light to dissolve it in a lighter oil if possible. It's not very "penetrating"
when it's candle wax. =)
The same reaction as described above doesn't seem to happen with liquid paraffin, mineral oil or mineral spirits. I tried it with linseed oil, but
it's hard to be sure what's going on there, since it gets a little trigger happy with its polymerization with the copper oxide and high heat, so it
just turns to black tar.
Any information on the subject would be interesting. |