Lignin Sulfonate is water-soluble anionic polyelectrolyte polymers: they are byproducts from the production of wood pulp using sulfite pulping.
- The anti-oxidant effect of lignosulfonates is utilized in feeds, ensilage and flame retardants.
- The UV absorbance of lignosulfonates is utilized in sun screens and bio-pesticides.
- The single largest use for lignosulfonates is as plasticizers in making concrete, where they allow concrete to be made with less water (giving stronger concrete) while maintaining the ability of the concrete to flow. Lignosulfonates are also used during the production of cement, where they act as grinding aids in the cement mill and as a rawmix slurry deflocculant (that reduces the viscosity of the slurry).
- Lignosulfonates are also used for the production of plasterboard to reduce the amount of water required to make the stucco flow and form the layer between two sheets of paper. The reduction in water content allows lower kiln temperatures to dry the plasterboard, saving energy.
- The ability of lignosulfonates to reduce the viscosity of mineral slurries is used to advantage in oil drilling mud, where it replaced tannic acids from quebracho (a tropical tree).
- Lignosulfonates are used to disperse pesticides, dyes, carbon black, and other insoluble solids and liquids into water. They are used in tanning leather. They are also used to suppress dust on unpaved roads.
- Creates a Denser, Firmer Road Cap – Lignin treatment eliminates the sliding hazards of loose dirt and gravel by binding them into a hard, skid-resistant surface.
- Safe for the Environment – Lignins are non-toxic when properly applied, making them safe for foliage and surface water surrounding roadways. Lignins are not corrosive and can be applied without special equipment or clothing.
- Improves Safety – By controlling dust clouds, visibility on dirt roads is significantly increased, adding to driving comfort and safety.
- Reduces Road Repairs – Hardened road surfaces are less likely to suffer the ribbed “washboard” effect common with untreated gravel or dirt roads. As a result, frequent grading can be reduced or eliminated.
- No side effects are known.
- Not known.
- sulfonated lignin
Source: Wikipedia, https://en.wikipedia.org/wiki/Lignosulfonates