Sodium Polyacrylate
Sodium polyacrylate is a superabsorbent polymer used in diapers and hygiene products.
Sodium Polyacrylate
- CAS Number: 9003-04-7
- EINECS NO.: 618-221-3
- Molecular Formula: (C3H3NaO2)n
- Purity (%): Liquid ≥50%, Solid≥92%
- Appearance: Colorless to light yellow transparent liquid or white powder
- Type: water treatment grade and food grade
- Packing: 25KGS/DRUM, 25KGS/BAG, 20KGS/BAG
- Other Name: PAAS; PAA-Na; ACR; ASAP; Waterlock; Poly(sodium prop-2-enoate)
Sodium Polyacrylate Specification
| ITEMS | SPECIFICATIONS |
| Solid Content (%) :≥ | 50 |
| Density: (200C) g/cm3 | ≥1.2 |
| Free monomer (CH2=CH-COOH) % | ≤1.0 |
| PH (1%solution) | 6.0-8.0 |
| ITEMS | SPECIFICATIONS |
| Degree of charge, (mol/mol) % | 50-100 |
| Relative Molecular Weight | 7-9million |
| Bulk Density, kg/m3 | 600-800 |
| PH of 0.5% solution @ 25℃ | 6-8 |
| Insoluble, w/w % | 0.5max |
| Residual Acrylamide, ppm | 1000max |
| Mesh size,20-80 mesh,% | 90min |
| ITEMS | SPECIFICATIONS |
| Solid content | ≥96% |
| Molecular weight | ≥30million |
| residual monomer(%) | ≤0.5% |
| sulfate salt(so4,%) | ≤0.5% |
| Loss on drying(%) | ≤10% |
| residue on ignition(%) | ≤76% |
| heavy metal (Pb,%) | ≤0.002% |
| arsenic (As2O3,%) | ≤0.0002% |
| low polymer(%) | ≤5% |
| ITEMS | SPECIFICATIONS |
| Solid content | ≥92% |
| PH(1% water solution) | 7-9 |
| Density@20℃ g/cm3 | ≥0.65 |
| Chelator Ability mg/g | ≥350 |
| Dispersant Ability mg/g | ≥100 |
Types of Sodium Polyacrylate
| Feature | Sodium Polyacrylate Liquid | Sodium Polyacrylate Powder |
| Form | Ready-to-use solution. | Dry, concentrated powder. |
| Key Characteristic | High viscosity, transparent. Easy to pump and mix. | Very high moisture absorption. Can be dispersed as needed. |
| Best For | Applications needing ready liquid: • Water treatment • Industrial cooling systems | Applications needing high absorption or dry blending: • Hygiene products (diapers) • Cosmetics • Food industry |
What is Sodium Polyacrylate Used for
- Absorbent hygiene products: Used in diapers, adult incontinence products, and feminine hygiene products for enhanced absorbency.
- Water treatment: Acts as a flocculant and coagulant to remove impurities in water treatment processes.
- Agriculture: Improves soil water retention and promotes plant growth in arid or sandy soils.
- Personal care products: Functions as a thickening agent, stabilizer, and texture enhancer in gels, lotions, and creams.
- Food Industry: It can be used as a thickener in jams, sauces, ice cream, noodles, and processed foods.
- Industrial processes: Used as a viscosity modifier, binder, and dispersant in adhesives, coatings, and detergents.
FAQ of Sodium Polyacrylate
It depends on the grade. Food-grade sodium polyacrylate is generally considered safe and is used in cosmetics. Industrial-grade products are not meant for skin contact and can be irritating. Always check the product specifications for its intended use.
Yes, they are. Orbeez and similar water-absorbing toys are primarily made from a superabsorbent polymer, which is a form of sodium polyacrylate. This is what allows them to absorb and hold a large amount of water.
We maintain strict quality control from raw materials to finished product. You will receive a Certificate of Analysis (CoA) with every batch, confirming key parameters like purity and viscosity, ensuring the product you receive and resell meets the same standard every time.
The choice depends on the client’s end-use. Water treatment grade is for industrial applications like cooling systems. Food grade is required for cosmetics or food contact. We provide clear specifications and SDS for each grade to help you guide your clients correctly.
Sodium Polyacrylate is available in liquid form packaged in 25kg drums, and in solid (powder) form in 25kg bags or 20kg bags.
Sodium polyacrylate (a superabsorbent polymer) should be stored in a cool, dry, sealed container, away from heat sources, sunlight, acidic substances, and strong oxidants.
Sodium Polyacrylate Suppliers
HOOCHEMTEC: Your Professional Partner for Sodium Polyacrylate
We specialize in high-performance Sodium Polyacrylate, a versatile polymer key to modern industry.
Our Product’s Key Advantages:
Dual-Grade Solutions: We supply both water treatment grade for effective scale inhibition and clarification, and food grade for safe use as a thickener or stabilizer.
Flexible Forms: Available in liquid (ready-to-use) and powder (high-absorption) forms to suit your process.
Proven Performance: Enhances efficiency in applications from cooling water systems to consumer product formulations.
Why Choose HOOCHEMTEC:
Quality & Compliance: Our production meets strict standards, ensuring consistent quality and reliable performance for each specialized grade.
Expert Support: Our team provides technical guidance to help you select the optimal product type and grade for your needs.
Reliable Partnership: We focus on dependable supply and building lasting relationships to support your success.
Contact us to find the right Sodium Polyacrylate solution for your application.
