How to make quick snow (artificial snow) in chemical experiments?

In order to achieve the effect on the drawing, it is necessary to control the ratio and add water according to the ratio of 1 (sodium polyacrylate): 25. Some sodium polyacrylate forms artificial snow after adding water, and some forms hydrogel after adding water. This is because different molecular weights have different effects. Only by controlling the ratio of 1 (sodium polyacrylate): 25 (water) can we achieve the effect of making snow quickly.

Extended data

Using sodium polyacrylate powder and water to make "artificial snow"

principle

Sodium polyacrylate is a water-soluble linear polymer. When water molecules contact with polymers, polymer chains expand from outside to inside. Polymer chain is elastic, but it can only be extended to a certain length, and can't be extended any more. Sodium polyacrylate powder is fine-grained. After absorbing water, its appearance is no different from that of snow. It is white and crystal clear, cool to the touch, like snow. Mostly used in shopping mall counters, Christmas decorations, movies, stage scenery.

experiment

① Put 3 grams of powdery artificial snow into an empty mixing cup; ?

② Put 60ml of normal temperature water into the second cup; ?

(3) Quickly pour water into powdery artificial snow, and stare at the change, and the snow will grow;

Touch it by hand, just like real snow, it is artificial snow used by the film and television industry to make special artistic effects;

⑤ After water evaporates, it can be restored to its original appearance and can be used again.

Application mode

(1) take out a certain amount of artificial snow-white powder, quickly pour in 25 times of water, and it will soon expand into artificial snow like real snow;

② It can be expanded by 100 times at most, and the effect is best when it is 25 times. You can decide the amount of water to add according to your preference.