Youtor
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=3Fav4hqB0M8
Hello everyone. Today I want to tell you about an interesting substance called sodium polyacrylate. • This substance absorbs water very well and is used in many industries. • For example, so-called water breads are made from it. • They are also called water gel and are sold in many online stores, such as eBay. I ordered a few pieces and decided to show you what this is. • They’ve sent me such a packet. I ordered colored balls and colorless as well. And as you can see, the beads are fairly small and are composed mainly of sodium polyacrylate. • Also, they may have other compounds impurities. Now, let's see how these water balls swell in water, and how much water the sodium polyacrylate can absorb. • I took two cups and poured 0.5 liters of water into each. I then poured one sachet of water balls into each cup. I poured the colored water balls in one cup, and the colorless ones into the other one. • After some time sodium polyacrylate begins to absorb water and the water balls are gradually increasing. After 4 hours, the water beads have increased by approximately 15 times. • At the touch they resemble jelly or gummy bears. However, transparent balls have very interesting optical properties. • While swelling in water, the refractive index of the water balls becomes the same as waters. Therefore, on a particular background they seem almost invisible in water. • It can look that in the cup, where the balls were, there is only water. However, I lower my hand and I’m magically pulling out a handful of balls from there. • On the internet I saw a lot of videos that show you how to cook water balls, although that practically isn’t possible. • By mixing soda and pepper in a pan you can’t create water balls. • Water beads, made of sodium polyacrylate, are quite fragile. They can be crushed by humans fingers. • Water beads do have a practical use. They are used for pots of flowers as a filler. • Sodium polyacrylate absorbs water very well. For example, you can pour jelly beads in a vase and put flowers there. • Flowers will stand for a long time, as water beads gradually give out their water. • Water balls are also a very good toy for cats. My cat fell in love with these balls and often runs after them. Facebook: / thoisoi2 • Patreon: https://www.patreon.com/Thoisoi?ty=h • Music: http://audiomicro.com
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