sentence: China makes the most cadmium.
sentences_after: South Korea and Japan also make cadmium. Cadmium is taken from the zinc metal by heating the zinc metal in a vacuum. Cadmium is boiled first. The cadmium is condensed and used. Cadmium is also taken by precipitating it from the solution of zinc sulfate used to make pure zinc by electrolysis.
concept_name: China
headings: Cadmium Preparation
categories: Metals Chemical elements