Potassium polyacrylate

Potassium polyacrylate (CAS 25608-12-2) is a water-soluble superabsorbent polymer used in agriculture, water treatment, and personal care manufacturing.

Where is Potassium polyacrylate used?

• Agriculture: soil conditioning products and slow-release fertilizer carriers
• Water treatment: flocculant and scale inhibitor in cooling water systems and industrial effluent processing
• Personal care: thickener and humectant in gels, creams, and lotions
• Home care and industrial cleaning: suspension stability and viscosity control in liquid detergent formulations
• It absorbs and retains large volumes of water relative to its own weight.
• As a pesticide carrier, provides a hydrogel matrix that limits volatilization losses and extends soil contact time.
• Used to solidify liquid waste for safer disposal.

Formulation notes

• For forage crops the application dose is 60-100 kg/ha.
• For horticultural crops the application dose can be up to 500 kg/ha.
• For fruit trees the dose is 25 to 100 grams per tree.
• For plants the dose is 1-5 grams per plant.

Typical specification

• Potassium polyacrylate 93% GR can absorb water up to 500 times its weight.
• Offered in granular, powder and fast-swelling gelling forms.
• Agricultural grade absorbs at least 400 g/g in distilled water and at least 50 g/g in 0.9% NaCl solution.
• Premium high-absorption grade is a white fine powder with potassium content of at least 22%.
• Insoluble in water and swells to form hydrogels upon hydration.

Regulatory status

• Generally considered safe for use in agriculture and horticulture.
• Use in food products is not approved due to potential health risks upon ingestion.

Frequently asked questions about Potassium polyacrylate

Can potassium polyacrylate be used in hydroponic systems?

In hydroponic horticulture, adding potassium polyacrylate products to the hydroponic solution improves plant appearance and survival rate.

How does potassium polyacrylate compare with sodium polyacrylate in acidic soils?

Potassium polyacrylate is more stable than sodium polyacrylate in acidic soils.

Is potassium polyacrylate suitable for saline-alkaline soils?

Potassium polyacrylate superabsorbent is formulated to correct the limitations of saline-alkaline soils by reducing the effects of surface salts and restoring soil aggregation.

Technical content is compiled and updated by the SoleChem product team from public technical sources; the certificate of analysis (COA) governs product-specific specifications.