How to make sodium acetate trihydrate
To make sodium acetate trihydrate, you first need to prepare all the ingredients. Acetic acid (CH < COOH >) and sodium hydroxide (NaOH) or sodium carbonate (Na < CO

If acetic acid and sodium hydroxide are used as materials, carefully measure an appropriate amount of acetic acid, slowly pour it into a container with an appropriate amount of water, stir it well. Then, add the sodium hydroxide solution drop by drop, and keep stirring with a glass rod. During this process, acetic acid and sodium hydroxide undergo a neutralization reaction. The reaction formula is: CH < COOH + NaOH → CH < COONa + H < O. When operating, be careful to control the reaction rate and temperature to prevent the reaction from being too violent.

If sodium carbonate and acetic acid are selected, first dissolve sodium carbonate in water to form a solution, and then slowly add acetic acid to the sodium carbonate solution. This reaction also needs to be stirred, and the reaction formula is: 2CH
COOH + Na < CO
→ 2CH < COONa + H < O + CO
. Due to the escape of carbon dioxide gas, the operation should be carried out in a well-ventilated place.

After the reaction is completed, the resulting solution is evaporated and concentrated. Heat the solution over low heat to gradually lose water, and continue to stir during the process to prevent local overheating from causing the liquid to splash. When a crystalline film appears on the surface of the solution, stop heating.

Then, let the concentrated solution stand and cool. As the temperature decreases, sodium acetate trihydrate crystals precipitate from the solution. After it is sufficiently cooled, it can be filtered with a Brinell funnel and a suction filter to separate the crystals from the mother liquor.

Finally, the resulting crystals are placed in a dryer or dried at low temperature to remove residual moisture, so that the finished sodium acetate trihydrate is obtained. Throughout the operation, be sure to strictly abide by the chemical test specifications and pay attention to safety.