Sodium Lignosulfonate
Sodium Lignin Sulfonate
- CAS
- 8061-51-6
- EC
- 617-124-1
- Sectors
- Building & Construction, Water & Wastewater Treatment, Coatings, Adhesives, Sealants & Elastomers
Sodium Lignosulfonate (CAS 8061-51-6) is a lignin derivative from sulfite pulping, supplied as a light tan to brown amorphous powder that is soluble in water and insoluble in organics, and serves as a dispersant in concrete admixtures, pigments and water treatment, and as a binder in ceramics. It has a density of 0.5-0.7 g/cm³, pH 7-11 in solution, and is highly soluble in water but insoluble in organics. Non-hygroscopic, it decomposes above 200°C without melting and has a slight odor; produced as a byproduct of sulfite pulping.
Sodium Lignosulfonate
Applications
Used as a dispersant in pigments, water treatment, concrete admixtures, and binders in ceramics; stabilizer for emulsions, tanning agent, and in agriculture for soil improvement.
Safety & Risks
Low toxicity; may irritate eyes or skin as dust, inhalation hazard considered. Non-flammable; avoid strong oxidizers. Generally regarded as safe with proper handling.
Packaging
Available in 25kg bags or big bags with polyethylene liners; for disposal, incinerate with flue gas scrubbing or recycle rinsed containers.