The method of making lead and chromium
Those who used to know how to make lead and chromium are good at studying the transformation of various things. One day, to make a thing, you need to use potassium chromate and lead acetate.

Take an appropriate amount of potassium chromate and put it in a clean vessel, its color is yellow and bright. Take another lead acetate and pour it carefully into the same vessel. When the two touch, the color gradually changes, and there is a strange phenomenon.

I saw that the sediment slowly grew in the vessel, and its quality is delicate, the color is bright yellow, and the shape is like coagulation. This is the combination of the two. The artist observes it, observes its changes carefully, and uses what he has learned to control the temperature and adjust the time, so that the reaction is complete.

When it is done, carefully filter out the sediment, and then wash it with water several times to remove its impurities. Then place it in a mild place and let it dry. Finally, a pure product is obtained, which is specific and can be used by others. The artist obtains it, and gladly hides it for later use.