What is sodium lignosulphonate?

Sodium lignosulphonate malaysia (lignosulfonic acid, sodium salt) is utilised in the food business as a de-foaming agent in paper manufacturing and in adhesives for food-contact items. It has preservative characteristics and is used as an animal feed ingredient. It’s also used in building, ceramics, mineral powder, the chemical industry, the textile industry (leather), the metallurgical industry, the petroleum industry, fire-retardant materials, rubber vulcanization, and organic polymerization.

Uses of sodium lignosulphonate

1. LS has numerous applications in the construction industry. In construction, it acts as a superplasticizer or retarder. LS is used in a lower proportion, accounting for 0.5-2 percent of the overall mixture. It does, however, increase the strength of the concrete by approximately 20 to 26 percent.

Lignosulfonate is a renewable bio-admixture derived from softwood and hardwood. Sodium Lignosulfonate also interacts with Gypsum, which is yet another component of cement. If utilized as a superplasticizer, it offers the three advantages listed below.

• Reduces formulation costs
• Improves the cured concrete’s durability and strength.
• Enhances the viability of the concrete mix

2. Can be used in lead batteries to act on crystallisation of lead sulphate, allowing the battery to last much longer.

3. Ceramics are commonly used to lower carbon content. The composition and molecular dimensions of lignosulfonate vary. Because LS are polymers, they can have their molecular structure altered by the addition of organic or inorganic molecules. Lignosulfonate can be added to ceramics to increase their mechanical strength. There are two reasons why lignosulfonate is being used in architectural ceramics:

• As a physique enhancer
• To obtain a low viscosity

In the ceramic paste, lignosulfonate acts as a reinforcement material. It increases the moulding capability of the ceramic paste as well as its strength. In architectural ceramic products, LS is also used as a primary compound material. They have a water-saving effect and also speed up the drying process.

4. Work on dust-suppression roads and in dusty industrial processes. Lignosulfonate is used in products such as fodder to disperse pesticides, dyes, carbon black, and other insoluble solids and liquids into water.

5. Its ability to decrease the flowability of mineral slurries is used to its advantage in oil drilling mud, where it replaces quebracho tannic acids (a tropical tree).

6. Could be used in plasterboard production to reduce the amount of water needed to make the stucco stream and construct the layer between two sheets of paper. The lower water content allows for lower kiln temperature changes to dry the plasterboard, which saves energy.

7. In disperse dyes and vat dyes, lignosulfonate is used as a filler and dispersant. It improves the uniformity of the dye’s colouring and increases its colour power. They are also understood to shorten the time required for dye grinding. The addition of Lignosulfonate to dyes improves their high-temperature stability and dispersion. SL is also used by some dye manufacturers during spray dying.

8. Lignosulfonate is used in the production of pesticides in a variety of ways. It’s a suspension agent, dispersant, and filler. The inclusion of SL enhances the wettability and suspension rate of the pesticide powder.