Industrial Grade Concrete Water Reducer CAS 8061-51-6 Sodium Lignosulfonate

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Sodium Lignosulfonate: A Versatile Industrial Polymer

Sodium Lignosulfonate (CAS No. 8061-51-6) is a water-soluble, high-molecular-weight polyelectrolyte derived from natural lignin, primarily sourced from spruce and pine wood 。This brown or yellowish-brown powder possesses a mild aromatic odor and is non-toxic and environmentally friendly. Its molecular formula is C₂₀H₂₄Na₂O₁₀S₂, with a typical purity ranging from 96% to 97% 。

Key Properties

Sodium Lignosulfonate exhibits excellent dispersibility and can dissolve readily in hard water without precipitation. It functions as a powerful dispersant, capable of breaking down biofouling, iron oxide scale, and calcium phosphate deposits. The product forms stable complexes with zinc and calcium ions, making it highly effective in various industrial applications 。Its methoxy group content typically ranges from 5.0% to 7.0% (on an anhydrous basis), and moisture content does not exceed 6.0% 。

Primary Applications

Construction Industry: Widely used as a concrete water reducer, it improves workability and strength while reducing water content. It is ideal for culverts, dams, reservoirs, airports, and highway projects 。

Agriculture & Chemicals: Serves as a wettable pesticide filler, emulsifying agent, and binder for fertilizer and feed granulation.

Oil & Mining: Functions as a plugging agent for well consolidation, oil exploration, and ore flotation.

Manufacturing: Applied in resin, rubber, dye, ceramic, paint, leather, refractory materials, and battery production.

Water Treatment: Used as a boiler descaler and circulating water stabilizer.

Coal & Energy: Essential additive for coal-water slurry and as a bonding agent in refractory materials.

Advantages

As a renewable, biodegradable product from wood byproducts, Sodium Lignosulfonate offers cost-effectiveness and environmental sustainability. It is available in various packaging sizes (100g to 50kg) and can be customized per client requirements 。

Conclusion

Sodium Lignosulfonate stands as a multifunctional industrial chemical with broad applicability across construction, agriculture, energy, and manufacturing sectors. Its unique combination of dispersing, binding, and water-reducing properties makes it an indispensable additive for modern industrial processes.