With ammonium acetate and ferrous chloride as the core
There were workers in the past, studying the synthesis of things. It takes ammonium acetate and ferrous chloride as the main, and explores the wonders of its change.

At the beginning, prepare ammonium acetate and ferrous chloride, carefully measure the number, and make according to the recipe. Ammonium acetate, mild in nature, white and crystalline; ferrous chloride, light green body, soluble in water.

The worker sets the device, fills an appropriate amount of water, slowly adds ammonium acetate, stirres it to dissolve, and its liquid is clear. After adding ferrous chloride, in an instant, the color changes and melts. The liquid gradually turns, or there is precipitation, and its state is fantastic.

The workers scrutinized it carefully, recorded the changes, and analyzed the reasons for its transformation. Thinking about the help of the industry, or it can be a new material, or it can be a difference in the method.

So, the workers used ammonium acetate and ferrous chloride as the basis, thought hard, and hoped to create something.