Lignosulfonate Admixture

Lignosulfonate is a natural polymer derived from the sulfite pulping process of wood. It is commonly used as an admixture in the construction industry to improve the properties of concrete, but it also has various applications in agriculture, animal feed, and other industries. The lignin sulfonate for sale can be classified based on their source, chemical composition, and application. 

Classification of Lignosulfonate Admixture

  • Based on the source, lignosulfonate can be classified into three main categories: softwood, hardwood, and grass lignosulfonates. Softwood lignosulfonates are obtained from coniferous trees, while hardwood lignosulfonates are derived from deciduous trees. Grass lignosulfonates are obtained from the pulping of grasses such as wheat straw, rice straw, and bagasse.
  • Chemically, lignosulfonates can be classified based on their degree of sulfonation. The degree of sulfonation refers to the amount of sulfonic acid groups attached to the lignin molecule. Lignosulfonates with higher degrees of sulfonation are more water-soluble and have better dispersing properties.
  • In terms of application, lignosulfonates can be classified into various types based on their specific use. For example, calcium lignosulphonate is commonly used as a dust suppressant, while sodium lignosulfonate is often used as a dispersant in concrete. Ammonium lignosulfonate is used as a flotation agent in mineral processing, and magnesium lignosulfonate is used as a water-reducing agent in concrete.
  • The lignosulfonate admixture can also be classified based on their molecular weight. High molecular weight lignosulfonates are more effective in applications where a stronger binding agent is needed, while low molecular weight lignosulfonates are more effective as dispersants.
  • Finally, lignosulphonate can be classified based on their processing method. For example, modified lignosulfonates can be produced by reacting lignosulfonates with other chemicals to alter their properties and make them more effective for certain applications.

Sodium lignosulfonate is widely used as an additive in a variety of industries, including construction, agriculture, and animal feed. As an effective dispersant, it can be used to evenly distribute solid particles in a liquid medium. This makes it a valuable ingredient in many applications where uniformity and stability are important.

  • In the construction industry, the sodium lignosulphonate powder is commonly used as a concrete admixture. It can improve the workability of concrete and reduce the amount of water needed for a given mix, leading to higher strength and durability of the final product. As one of the effective water reducing agents in concrete, which can reduce the amount of water needed for a given mix and improve the flow of concrete.
  • In agriculture, sodium lignosulfonate is used as a soil conditioner and feed additive. It can improve soil structure and water-holding capacity, leading to better plant growth and higher crop yields.¬† As a feed additive, sodium lignosulfonate can improve the palatability of feed and increase the absorption of nutrients, leading to better animal health and productivity.
  • It is also used in the production of animal feed pellets, which can improve the binding properties of the feed, leading to more uniform and durable pellets.¬†
ItemsSodium Lignosulfonate
AppearanceYellow Brown Powder
Dry Matter %92 min
Lignosulphonate %60 min
Moisture %7 max
Water-insoluble matter %0.5 max
Sulfate (as Na2SO4) %4 max
PH Value7.5-10.5
Content of Ca and Mg %0.4 max
Total reducing matter %4 max
Content of Fe %0.1 max
PackingNet 25kg PP bags; 550kg jumbo bags;

Calcium lignosulfonate is commonly used as an admixture for concrete in the construction industry, but it also has various applications in agriculture, animal feed, and other industries.

  • For construction industry, calcium lignosulfonate is used as an water reducing agent in concrete. It can improve the workability of concrete and reduce the amount of water needed for a given mix, leading to higher strength and durability of the final product. And it is also an effective air-entraining agent, which can improve the freeze-thaw resistance of concrete and reduce the risk of cracking.
  • As a dust suppressant, calcium lignosulfonate is an effective agent for controlling the amount of dust generated during various industrial processes. When added to water, it can form a stable and uniform solution that can be applied to surfaces to reduce dust emissions. Therefore, it is often used in road construction, mining, and other industries where dust control is critical for worker safety and environmental protection.
  • In agriculture, it is used as a feed additive to improve the quality of animal feed, which can improve the palatability of feed and increase the absorption of nutrients, leading to better animal health and productivity. When used a soil conditioner, it can improve soil structure and water-holding capacity, leading to better plant growth and higher crop yields.
Index itemsStandard valueTest Results
AppearanceBrown powderMeets the requirement
Moisture‚ȧ5.0%3.2
PH value8–108.2
Dry matter‚Č•92%95
lignosulphonate‚Č•50%56
Inorganic salts(Na2SO4‚ȧ5.0%2.3
Total reducing matter‚ȧ6.0%4.7
Water insoluble matter‚ȧ4.0%3.67
Calcium magnesium general quantity‚ȧ1.0%0.78

Lignosulfonate admixture is an important ingredient in the construction industry that can improve the performance of concrete in many ways. By enhancing workability, strength, and durability, lignosulfonates can help to create a more efficient and sustainable construction process. When used properly, lignosulfonate admixture can lead to stronger, longer-lasting concrete structures that are better able to withstand the challenges of modern construction.

  1. It enhances the workability of concrete. When added to a concrete mix, lignosulfonates act as a dispersant, helping to distribute the cement particles more evenly. This results in a more fluid concrete mix that is easier to work with and requires less water. Additionally, lignosulfonate admixtures can improve the flow of concrete, which is especially important in situations where concrete needs to be pumped over long distances.
  2. In addition to improving workability, lignosulfonate concrete admixtures can also increase the strength and durability of concrete. Lignosulfonates act as a binding agent, helping to create a stronger, more cohesive concrete mix. They also improve the water resistance of concrete, which is important in situations where the concrete will be exposed to moisture or water.
  3. lignosulfonate admixture can reduce the amount of cement needed in a concrete mix. This is because lignosulfonates can enhance the performance of cement particles, allowing for a more efficient use of cement. This not only reduces costs, but it also helps to reduce the carbon footprint of concrete production.
  4. When using lignosulfonate concrete admixture, it is important to follow proper mixing and dosing procedures. Overuse of lignosulfonates can lead to a reduction in strength and an increase in setting time. It is also important to ensure that the lignosulfonate admixture is compatible with other admixtures that may be used in the concrete mix.

Why Choose Kingsun Company

  • As a leading lignosulfonate manufacturer & supplier in China, Kingsun has more than 15+ years of production and sales experience in the construction chemicals industry.
  • Kingsun has a strict quality inspection center, and many products have also passed ISO, SGS and other certifications.
  • We always try our best to provide the good quality products, factory wholesale price and good services for all the customers.
  • Our prodcuts have been exported to more than 30 countries and regions, including Mexico, Brazil, Colombia, Turkey, Saudi Arabia, UAE, South Africa, Jordan, Russia, Peru, Bangladesh, South Korea, Indonesia, Thailand, Philippines, Vietnam, Malaysia, Singapore, Pakistan, Bahrain, Chile, Israel, Qatar, India, etc. At the same time, there are many new and old customers have established the long-term cooperative relationships with us!

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