How Is Sodium Lignosulfonate Made?

With pulp mill waste as a raw material,Sulfite or bisulfate process. Bisulfite pulping of calcium contained in the pulp waste directly binding to lignin hydroxyl molecules generated lignin. ... Then added to the filtrate Na2CO3, turn into calcium lignin sulfonate sodium. The reaction temperature is preferably 90 deg.]

Are Lignosulfonates safe?

Extensive studies have been conducted to evaluate the effects of lignosulfonates on the environment. Results show that they are not harmful to plants, animals or aquatic life when properly manufactured and applied. Lignosulfonates have been used as a treatment for dirt roads in Europe and the U.S. since the 1920's.

Is sodium lignosulfonate hazardous?

Not classified as a hazardous substance or mixture according to OSHA Hazard Communication Standard 1910.1200.