Sodium Lignosulfonate (CAS 8061-51-6) is a yellow-brown amorphous powder and anionic polyelectrolyte derived from the sulfite pulping process of wood, primarily utilized as a cost-effective water-reducing admixture in concrete and a green strength binder in ceramics. This Lignosulfonic acid sodium salt functions as a highly efficient surface-active agent in Sodium polylignosulfate treated slurries, adsorbing onto particle surfaces to provide electrostatic repulsion that improves flowability while reducing water consumption in construction materials and animal feed pellets. To support industrial-scale requirements, we provide bulk supply with competitive factory pricing and ensure rigorous quality control through customized specifications alongside standard technical documentation, including MSDS, TDS, COA.
Sodium Lignosulfonate CAS 8061-51-6
- CAS: 8061-51-6
- Synonyms: Lignosulfonic acid sodium salt, Sodium polylignosulfate, Sulfonated lignin sodium salt, Sodium lignin sulfonate, Lignin sulfonate sodium
- Molecular Formula: C20H24Na2O10S2
- Grade: Industrial grade 99%
- Package: 200kg iron drum or 50kg plastic drum packing
Product Description
Sodium lignin sulfonate is an organic substance with the chemical formula C20H24Na2O10S2, lignin is the second largest content in nature after cellulose and chitin Polymers One of its most widely used uses is to convert it into by sulfonation modification Lignin sulfonate, which includes sodium ligninsulfonate.
Sodium lignin sulfonate can be used as an admixture in polymers and concrete, with the advantages of low cost and environmental friendliness.
chemical formula:C20H24Na2O10S2
molecular weight:534.51
CAS login number:8061-51-6
Appearance:Tan, powder or liquid
application:cement, concrete superplasticizer, etc
Abbreviation:Sodium wood (LS)
Chemical properties:Sodium lignin sulfonate is a tan powder or liquid. No peculiar smell. It is non-toxic, easily soluble in water and lye, and has strong dispersion ability when precipitated by acid.
Main uses:
1. Refractory and ceramic products dispersion, bonding, water reduction enhancer, improve the yield by 70%~90%.
2. It can be used as a water plugging agent in geology, oilfield, consolidation well wall and oil extraction.
3. Wettable pesticide fillers and emulsifying dispersants; Adhesive for fertilizer granulation and feed granulation.
4. It can be used as a concrete superplasticizer, suitable for culverts, embankments, reservoirs, airports and highways.
5. The boiler is used as a descaling agent and circulating water quality stabilizer.
6. Sand prevention and sand fixation agent.
7. It is used for electroplating and electrolysis, which can make the coating uniform and have no tree-like pattern;
8. It is used as a tanning additive in the tanning industry;
9. It is used as a beneficiation flotation agent and mineral powder smelting binder.
10. Water and coal paddle additives.
11. Long-term slow-release nitrogen fertilizer, high-efficiency slow-release compound fertilizer improvement additive.
12. Reducing dyes, disperse dye fillers, dispersants, diluents of acid dyes, etc.
13. It is used as a cathodic shrinkage agent for lead-acid batteries and alkaline batteries to improve the low-temperature emergency discharge and service life of the battery

FAQ - Technical & Supply Chain
-
Q:
What is the main difference between Sodium Lignosulfonate and Calcium Lignosulfonate?
A: Sodium Lignosulfonate (CAS 8061-51-6) generally offers better water solubility and lower air-entraining properties compared to the Calcium salt, making it more suitable for high-performance concrete and applications requiring precise dispersion without excessive retardation. -
Q:
Can this product be used in animal feed?
A: Yes, specific grades of Sodium Lignosulfonate are widely used as a pellet binder and lubricant in the animal feed industry, helping to improve pellet durability and reduce fines during processing.
Documents and Product Support
For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.
- COA for batch-based quality reference
- TDS for key physical and chemical information
- SDS / MSDS for handling, storage, and safety reference
- Packing information for sample, trial, and bulk orders
- Technical communication based on application and specification requirements
Information to Confirm Before Quotation
Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.
- Product name and CAS number
- Application or intended end use
- Required purity, grade, or specification
- Sample quantity, trial order, or bulk demand
- Preferred packing form or net weight
- Destination country or port
- Required documents or compliance expectations
Packaging, Storage, and Handling Notes
Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.
Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.
Sample, Bulk Order and Repeat Supply Support
Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.
For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.




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