Water baby bottle tutorial

The water baby bottle tutorial is as follows:

Preparation materials: water, bottles, water babies.

The operation steps are as follows:

1, prepare a box to pour water baby.

2. add water.

3. Wait patiently for him to grow up.

4. It will swell in half a day.

5. Put all kinds of colors in a sealed bag (choose the appropriate amount according to the size of the bottle), then crush them into pieces and put them into the bottle.

6. One layer of each color arranges the order of colors according to your own preferences and then adds water.

Water babies are colored beads the size of capsules. After soaking in water, it can quickly become big beads and even produce small "beads". It is very popular with children. The game is to put the water baby in a bottle and add water to wait.

A teacher from the Department of Chemistry of Northwest University analyzed that it should be a kind of water-absorbent resin, which is usually made of starch mixed with acrylonitrile or acrylate. Both acrylonitrile and acrylate have certain toxicity. Moreover, it is impossible for merchants to use expensive food pigments in their production, and some industrial pigments may be added.

Therefore, primary school students are advised not to play with such things. If it comes into contact with skin, it should be cleaned quickly. Of course, parents should also pay great attention to avoid letting children play to avoid eating by mistake.

Acrylonitrile: Acrylonitrile, CH2=CHCN, is a colorless, flammable and volatile liquid with a special almond smell. Slightly soluble in water, its low concentration aqueous solution is extremely unstable and easily soluble in general solvents. Acrylic acid is produced during hydrolysis and propionitrile is produced during reduction. Easy to polymerize, and can also be polymerized with vinyl acetate, vinyl chloride and other monomers.