Make 10 Etchants for Copper Printed Circuit Boards - NurdRage
Make Ferric Chloride (for etching printed circuit boards) - NurdRage
Make Copper Chloride (3 ways) - NurdRage
Recover Copper from Ferric Chloride Etchant (Waste free method) - NurdRage
Recycle Copper chloride PCB etchant (waste free method) - NurdRage
Make an Air Sensitive Solution - NurdRage