Is Sodium Polyacrylate Safe for Human (especially children)?

Sodium polyacrylate – the superior absorbency material

Sodium polyacrylate is a functional polymer used in a variety of common products such as paper diapers, pets pads, water-retaining material (to help the soil retain water), instant snow, and so on. It is known for its superior absorbency:

Sodium polyacrylate can absorb hundreds times its own weight in water. It starts out as a powder and as it comes into contact with moisture, it swells into its gel form.

Unlike other absorbent materials, it’s not easy to squeeze the moisture out of this gel. This is what makes it perfect for use in paper diapers — your baby can sit on it, roll around, sleep for hours in a wet diaper without leaks.


Is it safe?

According to various material safety data sheets (documents created by the U.S. Occupational Safety and Health Administration that list potential hazards of chemicals in great detail), sodium polyacrylate is totally safe.

We can also know more through the MSDS (Material Safety Data Sheet) documents like this:

Sodium Polyacrylate Material Safety Data Sheet


“How about touching the skin directly ?”

Sodium polyacrylate itself is not irritating to the skin. As a polymer, it sticks together in long chains that are way too large to be absorbed through the skin.

But some kind of sodium polyacrylate is mixed up with small amounts of acrylic acid, a leftover from the manufacturing process.

In theory, acrylic acid in large doses could be harmful to a baby’s skin. But according to a 2009 report in the Journal of Toxicology and Environmental Health, there isn’t nearly enough acrylic acid in disposable diapers to raise concern. (The study was funded by Procter & Gamble, a major manufacturer of diapers.) Another side, sodium polyacrylate suppliers should test the acrylic acid value and make sure it is less than 300 ppm (part per million).


So, the conclusion is …

Sodium polyacrylate is safe — non-toxic and free from any major safety risks.

It can pose certain dangers if not handled properly. But please be sure to take notes of the following hazards and take precautions to avoid any injury or mishaps when handling sodium polyacrylate.

  • If the powder is inhaled, it can irritate the lungs–but that’s not generally a concern.
  • When it comes in contact with a large amount of spilled water in an area, it can cause the area to become very slippery.
  • If it enters sewer or drainage systems in large quantities, it can cause serious clogging and should be dealt with immediately.

Applications

Hygiene Products

It’s mainly used in Hygiene Products such as Diapers, Sanitary Napkins, Nursing pads, and Pet pads, etc.

Ice Bag

The single sheets of Ice packs are activated by placing them in fresh tap water.

Water Absorbent Pad

SAP brings a new, specially developed absorbent layer that helps consumers simulate a dry process in vacuum packaging – with amazing results.

Gel Polymer Beads

Water beads are made of SAP. It can absorb a large amount of water and turn into a bigger ball.

Cables

Used in waterproof tape and waterproof ointment for use in optical fiber cables.

Anti-flood Bag

SAP in an anti-flood bag absorbs the water completely in 3 to 5 minutes when meets water and the bag will inflate quickly. Before absorbing water, the bag is small and light.

Drilling

SAP Drilling Mud Additive (SNA-505) which is a new environmental protection product with good water-absorbable and swellable properties, can effectively against lost circulation.

Concrete

-It with fibrous shapes potentially can be used to make high.
-Can be used as an internal sealant in cement-based materials.
-A special use of SOCO Polymer in concrete could be as a controlled release agent.

Sewage Treatment

SAP is a cost-saving alternative to other bulk solidifiers, including Portland cement, kiln dust, corn-cobs, sawdust or other commodity absorbents.


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