Sodium Lignosulfonate

Sodium lignosulfonate (SLS) is an inorganic substance with the chemical formula C20H24Na2O10S2. The appearance is yellow-brown powder. It is non-toxic, tasteless, soluble in water and lye, precipitates in acid, and has strong dispersing ability. It is not only a natural polymer, but also an anionic surfactant. As a natural polymer, its content is second only to cellulose and chitin in nature. So sodium lignosulphonate has a very wide range of uses. 

  • Sodium Lignosulphonate Powder
    Sodium Lignosulphonate Powder
  • Product Name: Sodium Lignosulfonate (SLS)
  • Appearance: Yellow Brown Powder
  • Lignosulphonate % : 60 min
  • Dry Matter % : 92 min
  • PH Value: 7.5~10.5
  • CAS No.: 8061-51-6
  • HS Code: 38040000
  • Molecular Formula: C20H24Na2O10S2

Sodium Lignosulfonate Uses

As a kind of lignin sulfonate, one of its most extensive uses is to convert it into lignin sulfonate through sulfonation modification, including sodium lignin sulfonate. It can be used as an admixture for concrete and has the advantages of low cost and environmental friendliness. In addition, sodium lignosulfonate powder can also be widely used in these industries, such as resin, rubber, dyes, pesticides, ceramics, cement, asphalt, and feed, etc. If you want to know the latest sodium lignosulfonate price, then please contact us online. We provide high-quality products and reasonable price for you.

Concrete water reducing admixture is currently the most demanded application area of sodium lignin sulfonate. It meets the national standard of high-efficiency retarding water reducing agents, with high water-reducing performance, low slump loss, high strength, retarding, and other excellent properties. Its production cost is low and it has strong market competitiveness. It has adsorption and dispersion effects on cement and can improve various physical properties of concrete. It can be compounded into early strength agents, retarders, antifreeze, pumping agent, etc.

Sodium lignosulfonate water-reducing agent used in concrete admixture has the characteristics of low content, low gas content, and strong adaptability to cement. The most remarkable feature is that the liquid admixture produced by sodium lignosulfonate and naphthalene sulfonate has no precipitate. In addition, it has many advantages:

  • Can reduce water consumption by more than 14%.
  • Significantly improve the workability of concrete.
  • Can significantly reduce the hydration heat of cement at the initial hydration stage.
  • It does not contain chlorine salt and has no corrosive effect on reinforcement.
  • No alkali active substance.


  1. Sodium lignosulfonate water-reducing agent, the recommended amount in concrete is 0.2%~0.6%(cement weight), the user should determine the best content through experiment.
  2. Sodium lignosulfonate superplasticizer can be used as a liquid form.
  3. Sodium lignin sulfonate superplasticizer has an obvious compounding effect with naphthalene series high-efficiency superplasticizer. The dosage and proportion should be determined by the user according to the type of cement used, the aggregate situation, and the type of naphthalene series high-efficiency superplasticizer after the experiment.

Adding this product during the preparation of coal water slurry can improve the output of the high mill. Besides, it can maintain the normal state of the pulping system, reduce the power consumption of pulping, and increase the concentration of coal water slurry.

In the process of manufacturing wall tiles and refractory bricks, sodium lignin sulfonate can not only firmly bond the raw material particles of the green body, but also increase the strength of the dry slab by 20%-60%.

As dispersing agent and filler for vat dyes and disperse dyes, it can increase the dye color, uniform the coloration and shorten the dye grinding time. Besides, it can be used as a filler, dispersant and suspending agent in pesticide processing. It can greatly improve the suspension rate and wetting property of wettable powder.

Used for ball crushing of iron ore fines, lead-zinc ore fines, pulverized coal, coke powder. Moreover, it also is used in pressing of cast iron and cast steel sand.

It can improve liquidity in crude oil transportation and reduce energy consumption. In petroleum products, it is widely used. Such as cleaning agent, dispersant, rust inhibitor, antistatic agent, emulsified viscosity reducer, anti-wax.

  1. The dosage must be strictly controlled during the construction process. Excessive dosage may cause the condensation time to be significantly prolonged.
  2. Product retardation increases significantly with decreasing temperature. The lower the temperature, the slower the strength growth.
  3. The product is easily soluble in water and can be formulated into an aqueous solution of 1%-50% When dissolving, put water into the container first, then quickly add sodium lignin sulfonate while stirring to avoid agglomeration or prolong dissolution time. After being formulated into a solution, it should be used up within ten days to prevent mildew.
  4. The suitability test for cement varieties should be carried out before use. The concrete water reducing agent raw materials must be tested and meet the technical requirements before they can be used in engineering.
  5. For concrete with bleed air volume, when the bleed air volume is too large, it is necessary to select the appropriate vibration time, or take other defoaming measures, so that the gas content can meet the technical requirements.
Items Sodium lignosulfonate
Appearance Yellow Brown Powder
Dry Matter % 92 min
Lignosulphonate % 60 min
Moisture % 7 max
Water-insoluble matter % 0.5 max
Sulfate (as Na2SO4) % 4 max
PH Value 7.5-10.5
Content of Ca and Mg % 0.4 max
Total reducing matter % 4 max
Content of Fe % 0.1 max
Packing Net 25kg PP bags; 550kg jumbo bags;

Kingsun - Professional Manufacturer & Supplier

Are you looking for sodium lignosulphonate? If you are, then Kingsun chemical Co., Ltd. definitely is a better choice for you.

  • With more than 15 years’ experiences in construction chemicals industry, Kingsun has became a leading concrete admixtures manufacturer in China.
  • Kingsun has its own factory and raw materials, as well as advanced production lines, so we provide customers with sufficient supplies, and can deliver goods in time.
  • Our products have been exported to more than 30 countries and regions, they are Turkey, Saudi Arabia, UAE, South Africa, Jordan, Russia, Peru, Bangladesh, South Korea, India, Indonesia, Thailand, Philippines, Vietnam, Malaysia, Singapore, Pakistan, Bahrain, Mexico, Chile, Israel, Qatar, Brazil, etc. 
  • Kingsun always offers high-quality products, reasonable prices and good services for all the customers. Of course, we also look forward to cooperating with customers around the world.

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