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| Catalog Number | CI-HC-0111 |
| Product Name | Sodium Polyacrylate |
| CAS | 9003-04-7 |
| Structure |  |
| Synonyms | 2-Propenoic acid, homopolymer, sodium salt |
| Description | Sodium salt of polyacrylic acid. It is an acrylic-based polymer used to thicken aqueous solutions and to stabilize emulsions. Has anionic properties. |
| IUPAC Name | Sodium;prop-2-enoate |
| Molecular Weight | 94.04g g/mol |
| Molecular Formula | (C3H3NaO2)n |
| Canonical SMILES | C=CC(=O)[O-].[Na+] |
| InChI | NNMHYFLPFNGQFZ-UHFFFAOYSA-M |
| InChI Key | InChI=1S/C3H4O2.Na/c1-2-3(4)5;/h2H,1H2,(H,4,5);/q;+1/p-1 |
| Melting Point | >300 °C |
| Density | 1.32 g/mL |
| Solubility | Solubility in water: good |
| Appearance | Fine, white powder |
| Application | Hair care, sanitized hand soaps, scrub formulations |
| Storage | Store light-protected at a cool and dry place |
| Features And Benefits | Superabsorbent polymer. Absorbs many times its weight of aqueous fluids. Absorbs aqueous fluids to give gels which retain fluids under stress. Polymer swells in water but does not dissolve. Amount of aqueous fluid absorbed decreases with increasing salt content. |
| HS Code | 3208100000 |
| INCI | Sodium polyacrylate |
| Uses | Recommended use level 0.5-2%. For external use only. |
What is sodium polyacrylate used for in cosmetics and skincare products?
Sodium polyacrylate is used as a thickening agent, texture enhancer, film-forming agent, and emulsion stabilizer in cosmetics and skincare products.
What is the molecular structure of sodium polyacrylate?
Sodium polyacrylate is a high molecular weight polymer with a structure built up from acrylic acid monomers bonded together.
What happens to sodium polyacrylate when it is added to water?
Sodium polyacrylate turns into a gel-like substance and absorbs many times its weight in water.
Who can use products containing sodium polyacrylate?
Products containing sodium polyacrylate can be used by all skin types except those with a known allergy to it.
How does sodium polyacrylate function as a thickening agent?
Sodium polyacrylate absorbs water and forms a gel, which helps to thicken the formulation of products.
How does sodium polyacrylate contribute to the texture of products?
Sodium polyacrylate enhances the smooth and glossy appearance of products, making them feel rich, smooth, and creamy.
What is the film-forming property of sodium polyacrylate?
Sodium polyacrylate creates a thin, flexible film on the skin that gives a smooth feeling and helps to protect the skin.
What is the role of sodium polyacrylate as an emulsion stabilizer?
Sodium polyacrylate helps to prevent emulsions, which contain both water and oil-based ingredients, from separating or splitting.
Is sodium polyacrylate safe for use in cosmetics and personal care products?
Yes, the Cosmetic Ingredient Review Expert Panel has assessed the safety of sodium polyacrylate and concluded that it is safe for use in cosmetics and personal care products when formulated to avoid skin irritation.
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