Preparation of copper acetate tetrahydrate
1. Preparation of raw materials
Select high-quality copper sheets, which need to be clean and rust-free. This is the core metal source of the reaction. Prepare an appropriate amount of glacial acetic acid. Glacial acetic acid should have high purity and few impurities to ensure the purity and efficiency of the reaction. At the same time, prepare a sufficient amount of distilled water for dissolution and dilution, and the water quality should be pure, without impurities interfering with the reaction process.

2. Reaction process
1. ** Preliminary reaction **: Place the copper sheet in a special reaction vessel and slowly inject an appropriate amount of glacial acetic acid. Because the metal activity of copper is after hydrogen, it reacts very slowly with acetic acid at room temperature, so it needs to be heated moderately to promote the reaction. When the temperature rises to about [X] ° C, the reaction gradually becomes active, and fine bubbles can be seen in the solution, which is the characteristic of the initial reaction.
2. ** Accelerate the reaction **: In order to increase the reaction rate, an appropriate amount of oxidant, such as hydrogen peroxide, can be added to the reaction system. The addition of hydrogen peroxide can accelerate the oxidation process of copper and make the reaction smoother. As the reaction progresses, the color of the solution gradually changes from colorless to light blue, which is a sign of the formation of copper ions. Keep stirring to ensure that the reactants are in full contact and accelerate the reaction process.
3. ** Crystallization preparation **: When the concentration of copper ions in the solution reaches a certain level and the reaction tends to be complete, stop heating and stirring. Let the resulting light blue solution stand for a period of time until it cools to room temperature. During this process, fine crystals will gradually appear in the solution, which is the initial stage of crystallization of copper acetate tetrahydrate.

III. Crystallization and Purification
1. ** Crystallization Operation **: Transfer the cooled solution to a clean crystallization dish and place it in a low temperature and stable environment to promote further crystal growth. After a period of time, a large number of blue crystals can be seen forming on the bottom and wall of the crystallization dish, which is the crude product of copper acetate tetrahydrate.
2. ** Purification treatment **: In order to obtain high purity copper acetate tetrahydrate, the crude product is dissolved with an appropriate amount of distilled water. This process needs to control the water temperature and water volume to ensure that the crystals are fully dissolved without over-dilution. Subsequently, the method of filtration is used to remove the insoluble impurities remaining in the solution. The filtrate is recrystallized. The filtrate is placed in a lower temperature environment to slowly evaporate water, so that the copper acetate tetrahydrate is recrystallized and precipitated. Repeat this recrystallization process several times until the purity of the resulting crystal reaches the expected standard.

Fourth, product inspection and storage
1. ** Inspection link **: Comprehensive inspection of the final obtained copper acetate tetrahydrate product. The method of chemical analysis is used to determine the content of copper ions and acetate ions to ensure that the ratio of the two is in line with the theoretical value. At the same time, physical testing methods are used, such as measuring the melting point of crystals, observing the color and shape of crystals, etc., to determine the purity and quality of the product.
2. ** Proper storage **: Copper acetate tetrahydrate products that have passed the inspection should be stored in a dry and sealed container. Avoid contact with air, moisture, etc., to prevent moisture decomposition and deterioration. The storage environment should be kept cool, ventilated, and away from fire sources and strong oxidants to ensure the stability and safety of the product.