Strong ammonium acetate solution
In the past, there were wise men who studied techniques in the room, focusing on the preparation of strong ammonium acetate solution. He studied the classics carefully, observed the changes in physical properties, and knew the principles of chemical combination. He focused on nothing else, only seeking the goodness of strong ammonium acetate solution.

At the beginning, he collected all kinds of medicines, according to the proportion of the recipe, to be careful. Place a device in the kettle, inject liquid in the middle, and slow down the fire. The small flourishing of the fire is related to the change of the liquid, so he kept his eyes fixed, and always adjusted the fire with a fan, watching the color of the liquid and smelling the smell, lest there be mistakes.

During the process, there may be twists and turns. The properties of the liquid are not as expected, the color is turbid and the taste is not correct. The wise man was not discouraged, and took the steps of reviewing the plate, checking the quantity of various things, and observing the degree of heat. Thinking about what the classics said, he asked for the help of teachers and friends. The crux of the end is that the amount of a certain medicine is very different.

Remake, with caution. All things are suitable, the heat is moderate, the liquid is gradually clear, and the aroma is also correct. When it is completed, observe it, the color is pure and the quality is uniform, and the solution of strong ammonium acetate is obtained.

The wise man used the solution of strong ammonium acetate as a treasure, and used it for various things. Or apply it to the thing, observe its change; or add it to the technique, and seek its novelty. His dedication to the study of strong ammonium acetate solution can be used in later generations. Everyone praised him for his determination and fine skills, and he made great achievements in the research of strong ammonium acetate solution.