It is also used in industrial processes to dissolve soaps by absorbing water molecules. Thickening agents, like sodium polyacrylate, increase the viscosity of water-based compounds, which increases their stability.
In diapers, sodium polyacrylate will absorb the water molecules found in urine, increasing the amount of liquid the diaper can hold while at the same time reducing the risk of diaper rash by promoting a dry environment. Sodium polyacrylate has been included in the coatings of sensitive electrical wiring to keep moisture away from the wires.
Water and moisture conduct electricity, and can interfere with the transmission of electrical signals along wires that transmit elecrical signals, causing damage to the wire and creating a potential fire hazard. When sodium polyacrylate is infused in the protective rubber coating around a wire, it protects the wire from exposure to moisture, ensuring the safe transmission of electrical signals.
Sodium polyacrylate is used extensively in the agricultural industry and is infused in the soil of many potted plants to help them retain moisture, behaving as a type of water reservoir. Florists commonly use sodium polyacrylate to help keep flowers fresh, and this substance has been approved for domestic fruit and vegetable growing by the U.
CIR Safety Review: The CIR Expert Panel considered these ingredients to be similar in that they are large copolymers and polymers, uniformly produced in chemical reactions that leave very little residual monomer. Typical levels of residual acrylic acid were less than 20 ppm, although levels of ppm are found occasionally. Odor from residual monomers causes producers of these ingredients to keep levels as low as possible. Acrylates Copolymer did produce skin irritation, but no evidence of sensitization was found.
Although there appears to be a large variation in the mix of monomers used in the synthesis of these copolymers and polymers, they are similar in that the polymers, except for dermal irritation, are not significantly toxic. Residual monomer levels are kept as low as possible.
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Although the monomers may produce adverse effects under some circumstances, the levels found in cosmetics and personal care products are not considered to present a safety risk. Acrylates Copolymer and all related ingredients may be used in cosmetics and personal care products marketed in Europe according to the general provisions of the Cosmetics Regulation of the European Union. EU Cosmetic Regulation.
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Sodium acrylate | C3H3NaO2 - PubChem
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