So I casted a zinc ingot around a week ago and I also casted 2 zinc ingots yesterday. After observing the two side by side I noticed that the older zinc ingot was darker colored, then I went and looked at all of my old ingots containing zinc. They where all dark. Here is a picture of the old one and the new one side by side

enter image description here

The old ingot is on the left and the new one is on the right.

Here is another photoenter image description here

Is this oxidation possibly? What causes this? Any answers are appreciated.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.