Arsenic has a wide range of uses: 1. Arsenic can be used in the manufacture of alloys, such as the production of copper-enhanced alloys or added to alloys for the manufacture of lead-acid batteries for vehicles; 2. When manufacturing semiconductor electronic devices, arsenic is used as a dopant to synthesize n Form semiconductor materials, the Chemicalbook optoelectronic compound gallium arsenide doped with silicon is the most common semiconductor in use; 3. Arsenic and its compounds, especially arsenic trioxide (arsenic) are used in the synthesis of pesticides (used to treat wood products), herbicides and pesticides. But these applications are gradually disappearing.