I got it into my head that I’d like to DIY a circuit-writing pen. This is Part 1 of the project, the first run at making a copper pigment. This is a process for precipitating copper nanoparticles. I know there are other methods, with longer-lasting materials, but they require more equipment and precision. I thought I’d start with easy and document the improvements. This is a really easy chemistry experiment suitable (IMO) for classrooms, garage chemists and hobbyists.
- copper sulfate II pentahydrate (CuSO4·5H2O)
- ascorbic acid (C6H8O6)
- beakers x2
- mixing spoon
- water kettle