What is the blue material from the battery?

A. 1

If the battery is old and rust occurs, that's how blue corrosion occurs

Gentleman 7 years ago 0

OK

A. 2

There's copper in the battery, and when it rusts, it becomes blue
It's because it came out of the battery
Copper rust is toxic, so it's best not to touch it
If it was enough to make copper flow out, cadmium would have flowed out, but cadmium is highly toxic
It's good to throw it away carefully

Gentleman 7 years ago 0

OK