Sodium Polyacrylate CAS 9003-04-7

Physical & Chemical Properties

Because CAS 9003-04-7 covers a range of molecular weights (from low-weight liquids to high-weight cross-linked powders), specifications can vary. Below are the typical properties for the standard industrial solid/powder grade.

Key Application Fields

The magic of Sodium Polyacrylate lies in its adaptability. We supply varying grades tailored to these specific industries:

1. Water Treatment & Industrial Circulating Systems (Low Molecular Weight) In cooling water systems and boilers, Sodium Polyacrylate acts as an exceptional scale inhibitor and dispersant. It prevents calcium carbonate and calcium sulfate crystals from adhering to pipes, significantly improving heat transfer efficiency and reducing maintenance costs.

2. Detergents and Cleaning Agents (Low to Medium Molecular Weight) It is a crucial ingredient in laundry detergents and dishwashing liquids. It functions as an anti-redeposition agent, ensuring that dirt lifted from clothes or dishes is suspended in the water and rinsed away, rather than settling back onto the surface.

3. Paper and Textile Processing Used as a pigment dispersant, it helps lower the viscosity of coating mixtures (like calcium carbonate slurries), allowing for faster, smoother production runs.

4. Superabsorbent Polymers (SAP) / Hygiene (Cross-linked / High Molecular Weight) For the hygiene industry (diapers, sanitary pads) and agriculture (water retention crystals), we offer the cross-linked form. This version absorbs rapidly and retains water under pressure, transforming liquids into a stable gel.

5. Drilling Fluids In the oil and gas sector, it serves as a fluid loss control agent and viscosity modifier, helping to stabilize the borehole.

Safety and Precautionary Measures

Sodium Polyacrylate is generally considered low-toxicity and safe for industrial handling, but physical safety is the primary concern.

• Slip Hazard: This is the most critical safety note. When Sodium Polyacrylate powder mixes with even a tiny amount of water (spilled on the floor), it becomes extremely slippery. Spills should be cleaned up dry (sweeping or vacuuming) before washing the area.
• Respiratory Protection: Like any fine powder, inhalation should be avoided. Operators should wear dust masks (N95) during handling.
• Eye Contact: Wear safety goggles. If dust enters the eyes, flush with plenty of water.

Storage and Handling Conditions

To maintain the product’s efficacy—especially for powder grades—proper storage is non-negotiable.

• Moisture Control: The product is hygroscopic (it loves to absorb moisture from the air). Keep bags/drums tightly sealed immediately after use.
• Environment: Store in a cool, dry, and well-ventilated warehouse.
• Packaging: Typically available in 25kg paper bags with PE liners or bulk bags. Ensure the liner is intact to prevent cumping.
• Shelf Life: Generally 12-24 months if kept dry.