Edible water bubbles

1-Why is  this experience or invention useful ? What is its usefulness ?

It’s useful because this invention can replace the water bottle so save the material like plastic, it’s more ecologic

2-What are the materials or products used ?

The products used are sodium alginate and calcium chloride but for the experience that replaces calcium chloride with calcium lactate, resulting in a membrane that is less tough.

3- What do you have to do to achieve the experience? Can you describe precisely the different steps to achieve the experience or the invention?

BEFORE YOU WILL NEED :

 - 1 g of sodium alginate (a natural substance derived from brown seaweed)

- 5 g of food-grade calcium lactate (a type of salt that can be found commonly in cheese and gum)

- A bowl filled with 1 cup of drinking water

- Another bowl

FIRST STEP : You have to Add 1 g of sodium alginate to 1 cup of water. Then use an immersion blender to dissolve the sodium alginate. Once you're confident that it's dissolved, set the mixture aside to get rid of any air bubbles that may have formed during blending.

SECOND STEP : You have to Add 5 g of calcium lactate to 4 cups of water and mix well using a spoon.

THIRD STEP : You have to scoop up some of your sodium alginate solution using a deep spoon. Very carefully plop the sodium alginate into the calcium lactate bath. Repeat with the remaining sodium alginate but do not crowd the bath.

FOURTH STEP : You have to stir the sodium alginate bubbles very gently for 3 minutes.

FIFTH STEP : You have to STEP 5: After 3 minutes, remove the "bottles" from the calcium lactate bath using a slotted spoon and transfer them to a water bath to stop the reaction. 

 4- What are the various difficulties met to achieve the experiment ?

The difficulties are the materials can be found but sometimes they are scarce and  you must be meticulous. Also you must get a suitable bag to transport them because bubbles are delicate.

5- In which fields can we use this experiment? ( Industry, medical field, sports field, environment, everyday life…).

We can use it for the environment to stop using plastic bottle and save some money on the making of plastic bottles. So it’s sustainable.