Sodium Ligno Sulfonate
Appearence: | Light Brown Powder |
CAS No: | 8061-51-6 |
Molecular Formula: | C₂₀H₂₄Na₂O₁₀S₂ |
Chemical Name: | Lignosulfonic Acid Sodium Salt |
Chemical Name: | % 96 – 98 |
Ph: | 4 – 5 |
Moisture: | % 3 – 6 |
Ash Content: | % 17 – 19 |
Insoluble Matter in Water: | Max % 0,2 |
Storage Condition: | It should be stored in a cool, ventilated and moisture-free environment in closed packaging. |
Sodium Ligno Sulphonate
Sodium Ligno Sulphonate is a yellow-brown powder with the chemical formulas C9H10O2, C10H12O3, and C11H14O4. It is rich in anionic surfactants, high molecular weight polymers, carboxyl, and sulfo groups. Due to its fine powder structure, it has a high solubility rate in water. Sodium Ligno Sulphonate is commonly used in feed additives, agricultural fertilizers, the construction industry, and as a cement additive.
What is Sodium Ligno Sulphonate?
Sodium Ligno Sulphonate consists of lignin sulfonate and sodium compounds. Its MSDS (Material Safety Data Sheet) name is Lignosulphonic Acid Sodium Salt, with a molecular weight of 534.5 g/mol and a CAS number of 8061-51-6.
This chemical possesses biological slime dispersion properties under normal conditions. Thanks to its polymeric properties, it forms stable complex compounds with zinc and calcium, making it an essential ingredient in cement production.
How is Sodium Ligno Sulphonate Produced?
Sodium Ligno Sulphonate is obtained by reacting calcium bisulfite with lignin after the pulping process. The resulting calcium oxide is dissolved in water, followed by the addition of milk of lime. Sulfuric acid is then introduced into the solution, leading to the precipitation of calcium sulfate, which is filtered out. The remaining calcium lignosulphonate is reacted with sodium carbonate, yielding Sodium Ligno Sulphonate.
Where is Sodium Ligno Sulphonate Used?
Sodium Ligno Sulphonate, due to its ability to react with inorganic hydroxides and amines, is utilized in various industries:
Cement Industry: Reduces water consumption in cement mixtures, preventing internal collapse and decreasing cement usage.
Oil Drilling: Lowers the viscosity of drilling mud, reducing its mobility.
Concrete Superplasticizer: Enhances sulfonation methylation, improving concrete performance.
Agriculture: Used as a fertilizer to support soil-based plant growth.
Water Treatment: Acts as a dispersing agent in water purification processes.
Surfactant Applications: Thanks to its hydrophilic and hydrophobic properties, it aids in ion separation, contributing to water reduction in different applications.
What are the Benefits of Sodium Ligno Sulphonate?
Sodium Ligno Sulphonate has high dispersing activity and is a strong anionic surfactant. It plays a crucial role in construction chemicals, particularly in the cement industry and concrete processes, by increasing concrete fluidity and reducing water requirements. This leads to stronger, more durable concrete structures.
In oil drilling, it aids in the grinding process by increasing the viscosity of raw mud slurry.
In agriculture, it strengthens plant cell walls and enhances plant resistance against external factors, making it an effective growth-promoting agent.
How to Use Sodium Ligno Sulphonate?
Sodium Ligno Sulphonate is sold in water-soluble forms such as powder, granules, or liquid solutions. Its usage varies depending on the application:
Water Purification: Enhances the solubility of low-water-soluble substances, facilitating their removal.
Industrial Wastewater Treatment: Assists in dissolving and eliminating minerals in industrial waste.
Petrochemical Industry: Improves the quality of petroleum products by separating undesirable minerals.
Food Industry: Aids in removing waste generated during food processing (e.g., tea, coffee, fruits, and vegetables).
Agriculture & Forestry: Enhances soil fertility by improving the solubility of soil nutrients.
Detergents & Cosmetics: Due to its surface-active properties, it is widely used in cleaning products and cosmetics.
The appropriate dosage depends on intended use, environmental factors (pH, water temperature), and contamination levels. When handling Sodium Ligno Sulphonate, avoid direct skin, eye, and mucous membrane contact. If contact occurs, rinse with plenty of water and seek medical attention if necessary.
Major Industries Using Sodium Ligno Sulphonate
Sodium Ligno Sulphonate is a versatile intermediate used across multiple industries, including:
Construction: Acts as a cement additive that slows down solidification and reduces water evaporation.
Agriculture: Improves fertilizer solubility and enhances nutrient absorption.
Chemical Processing: Helps dissolve water-insoluble compounds, particularly in mining applications.
Cosmetics: Used to create foam and retain moisture in skincare products.
Sodium Ligno Sulphonate in Agriculture
The lignin content in Sodium Ligno Sulphonate, together with cellulose, strengthens plant structure. In mature trees, 18-38% of their composition consists of lignin, which is also abundant in herbaceous plants.
When applied as a chemical fertilizer, Sodium Ligno Sulphonate supplies essential sulfur and nitrogen to the soil. It is particularly beneficial in alkaline and neutral soils, improving productivity. However, its long-term use may increase soil acidity, making it unsuitable for already acidic soils.
To use Sodium Ligno Sulphonate in agriculture:
Dissolve the substance according to the manufacturer’s dosage recommendations.
Apply to plants using a fertilizer machine or manually.
Monitor soil pH before application to ensure optimal conditions.
By following these guidelines, farmers can maximize crop yield and soil health, ensuring efficient nutrient uptake.
Conclusion
Sodium Ligno Sulphonate is a highly functional, multi-purpose chemical used across various industries. Its water-soluble nature, dispersing properties, and cement-enhancing capabilities make it a valuable component in construction, agriculture, water treatment, and industrial applications. Proper usage ensures efficiency, durability, and environmental benefits.
