Hello to everyone, I did my first nitric bath with some milled gold ores.
soaked for two days in HCL (32%) with no added water. The acid workt well, a lot of iron got dissolved. Then soaked for two days in water.
Next I put the ore in a nitric solution (about 25/30%).
I leave it soaked for 48 hours and the acid is slightly yellow/orange, and there is a sediment on the ore .
What is it?
Do you think two days is enough to make the acid to work so I can going on with AR bath?
The temperature is getting low in these days, about 18/13 degrees C
The sediment is orange red as in photo, it will not dissolve in acid. But is the acid that "created" it...
soaked for two days in HCL (32%) with no added water. The acid workt well, a lot of iron got dissolved. Then soaked for two days in water.
Next I put the ore in a nitric solution (about 25/30%).
I leave it soaked for 48 hours and the acid is slightly yellow/orange, and there is a sediment on the ore .
What is it?
Do you think two days is enough to make the acid to work so I can going on with AR bath?
The temperature is getting low in these days, about 18/13 degrees C
The sediment is orange red as in photo, it will not dissolve in acid. But is the acid that "created" it...