First Page
Previous Page
Posted 01/12/2012 03:31 am
jwharper: I was thinking about the exposure time to olive oil.
As you perhaps may already know, the reason why olive oil works at all, is due to it's mild acidity. Poorer quality olive oils have a higher proportion of free fatty acids.
I notice that you have quite a few bronzes that have so far turned out to be worthless. It may be worth experimenting on these with vinegar, which logically, would have a faster reaction rate. To develop the experimnetation further, I was considering that perhaps you could separate out four of the 'worthless' coins, and put one each in a small vial, each vial containing
1.2/3 olive oil, one third vinegar,
2.1/2 olive oil 1/2 vinegar,
3. 1/3 oilve oil 2/3 vinegar
4. pure vinegar.
Examine the results of the exposure to these mixtures to the coins at regular intervals.
I am not sure that oilve oil and vinegar will mix, perhaps some detergent added to the mix will be required.
My guess is that with gross over exposure, especially to the pure vinegar, should result in coins that have a fresh salmon color, that is characteristic of pure copper that has been exposed to aggressive acid conditions. Obviously the experiment would be terminated way before the coins get to this state.
As you perhaps may already know, the reason why olive oil works at all, is due to it's mild acidity. Poorer quality olive oils have a higher proportion of free fatty acids.
I notice that you have quite a few bronzes that have so far turned out to be worthless. It may be worth experimenting on these with vinegar, which logically, would have a faster reaction rate. To develop the experimnetation further, I was considering that perhaps you could separate out four of the 'worthless' coins, and put one each in a small vial, each vial containing
1.2/3 olive oil, one third vinegar,
2.1/2 olive oil 1/2 vinegar,
3. 1/3 oilve oil 2/3 vinegar
4. pure vinegar.
Examine the results of the exposure to these mixtures to the coins at regular intervals.
I am not sure that oilve oil and vinegar will mix, perhaps some detergent added to the mix will be required.
My guess is that with gross over exposure, especially to the pure vinegar, should result in coins that have a fresh salmon color, that is characteristic of pure copper that has been exposed to aggressive acid conditions. Obviously the experiment would be terminated way before the coins get to this state.
