I did a small experimental batch of coaxial connectors from telecom boards. 200grams of connectors in 100 mils nitric with 100 mils water.
Nice vigorous reaction. The resulting solution was bright pink. Can any one tell me what metal turned the nitric solution pink? There would have been trace amounts of hcl on the parts from a previous experiment.
The parts looked like gold plated aluminum, however there was minimal reaction with a 50/50 Hcl water mix. Some thing "cemented" to the gold plate.
Here is a photo of the connectors.
Nice vigorous reaction. The resulting solution was bright pink. Can any one tell me what metal turned the nitric solution pink? There would have been trace amounts of hcl on the parts from a previous experiment.
The parts looked like gold plated aluminum, however there was minimal reaction with a 50/50 Hcl water mix. Some thing "cemented" to the gold plate.
Here is a photo of the connectors.
