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Ned Schmidt
Ned Schmidt

Where To Buy Water Gel Powder


This super-absorbent polymer, sometimes referred to as hydrogel powder, can help illustrate how farmers can save their crops in times of drought, as well as demonstrate the materials used in baby diapers.

Yes, you can reuse this water gel science kit after you are done with your experiments. Just spread the polymer into a thin sheet to let the water evaporate. In about 2 weeks the hydrogel will be back to its original powder form.

The chemical and physical properties of many polymers, or long carbon-chain molecules, make them very useful for a number of real-world applications. With the Water Gel Powder science kit from Steve Spangler Science, children can get a great look at the action of this kind of polymer up close. Sodium polyacrylate is a super-absorbent, cross-linked polymer powder that contains sodium atoms along its carbon chain. This sodium loves the polar water molecules and distributes itself between its own polymer network and the surrounding water, causing water molecules to travel inside the polymer network by osmosis. Then, the magic occurs as the water-absorbing powder takes in the water by osmosis and turns into a gel. Young scientists can watch the whole thing in amazement as they learn about the power of polymers. Afterward, your budding scientists can see what sort of crazy experiments they can try with our magic slush powder.

Gel is a state that is not quite solid or liquid, it is something in between. On its own, water has three states: solid, liquid, and vapor. With the addition of sodium polyacrylate or agar, it is possible to turn water into a fourth state: gel. The sodium polyacrylate method should be performed in a lab, but the edible method can be performed in the comforts of your kitchen.

Water crystal gel or water beads or gel beads is any gel which absorbs and contains a large amount of water. Water gel is usually in spherical form and composed of a water-absorbing superabsorbent polymer (SAP, also known as slush powder in dry form) such as a polyacrylamide (frequently sodium polyacrylate).

A superabsorbent polymer (SAP) (also called slush powder) is a water-absorbing hydrophilic homopolymers or copolymers[1] that can absorb and retain extremely large amounts of a liquid relative to its own mass.[2]

Water-absorbing polymers, which are classified as hydrogels when mixed,[3] absorb aqueous solutions through hydrogen bonding with water molecules. A SAP's ability to absorb water depends on the ionic concentration of the aqueous solution. In deionized and distilled water, a SAP may absorb 300 times its weight[4] (from 30 to 60 times its own volume) and can become up to 99.9% liquid, and when put into a 0.9% saline solution the absorbency drops to approximately 50 times its weight.[citation needed] The presence of valence cations in the solution impedes the polymer's ability to bond with the water molecule.

The largest use of SAPs is found in personal disposable hygiene products, such as baby diapers, adult diapers and sanitary napkins.[5] SAPs were discontinued from use in tampons due to 1980s concern over a link with toxic shock syndrome.[citation needed] SAPs are also used for blocking water penetration in underground power or communications cable, in self-healing concrete,[6][7] horticultural water retention agents, control of spill and waste aqueous fluid, and artificial snow for motion picture and stage production. The first commercial use was in 1978 for use in feminine napkins in Japan and disposable bed liners for nursing home patients in the USA. Early applications in the US market were with small regional diaper manufacturers as well as Kimberly Clark.[8]

Until the 1920s, water absorbing materials were fiber-based products. Choices were tissue paper, cotton, sponge, and fluff pulp. The water absorbent capacity of these types of materials is only up to 11 times their weight and most of it is lost under moderate pressure.

In the early 1960s, the United States Department of Agriculture (U


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