Hi I'm a chemist, my current work is with PFAS compounds, often known as forever chemicals. Please ask me about those, or anything else you are curious about related to chemistry. I will try to give you a solid response.

  • ZoomeristLeninist [comrade/them, she/her]M
    ·
    2 years ago

    some methoods use calcium to form a lead-calcium alloy that can be filtered.

    but the method with the highest lead removal is vacuum distillation at molten temperatures since copper and lead have a huge difference in boiling point. if the target alloy is brass instead of copper you boil off the brass from the lead since it has a low boiling point compared to lead and copper (zinc contributes to this)