Sodium Polyacrylate
Appearance: White powder
Application: It is often used in skin care products, shampoo, conditioner, toothpaste, shower gel and body cleaning products. Its excellent thickening properties, suspension properties, moisturizing properties and stability make it an indispensable raw material in daily chemicals.
Sodium polyacrylate is a white powder, odorless and tasteless, with extremely strong hygroscopicity. It is a high-molecular compound with both hydrophilic and hydrophobic groups. It dissolves slowly in water to form an extremely viscous transparent liquid. Its viscosity is due to the ionic phenomenon of many anionic groups within the molecule, which causes the molecular chain to grow, resulting in an increase in viscosity and the formation of a highly viscous solution. Its viscosity is approximately 15 to 20 times that of CMC and sodium alginate. It is often used as a stabilizer and moisturizer in lotions, facial masks and cosmetics.
| Property | Details |
| Chemical Name | Sodium polyacrylate |
| CAS Number | 9003-04-7 |
| Molecular Formula | (C3H3NaO2)n |
| Appearance | White powder |
| pH (0.5% aqueous solution) | 6.0 – 7.5 |
| Brookfield Viscosity 0.5% solution, 25°C, RV7 spindle, 20 rpm |
35,000 – 55,000 |
| Brookfield Viscosity 0.2% solution, 25°C, RV6 spindle, 20 rpm |
13,000 – 25,000 |
| Moisture Content |
≤ 6.0 |
| Storage | Store in a cool, dry place, away from sunlight |
| Shelf Life | 2 years under proper storage conditions |
