23) Scrape up the precipitate which has a razor blade, and place on a small part of baking paper. This can be wrapped up, and stored inside a interesting, dim and dry spot. We have now purchased 4 or five pairs of Verizon phones right here, and gotten fantastic set https://deadheadchemistdmt80122.answerblogs.com/36584754/about-4-aco-copyright-usa-vendor