A sulfonate salt of lignin that is produced as a waste product from chemical processes for making paper pulp. Lignin sulfonate is a brown powder that forms a colloidal solution in water. Lignin sulfonate is used as a dispersant for concrete and for carbon black additions to rubber. It is also used as a tanning agent for leather.
Synonyms and Related Terms
Forms a colloidal solution in water. Insoluble in most organic solvents
Sources Checked for Data in Record
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 451; says formed in 'sulfate' process
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993 Comment: says formed in 'sulfite' process
- The Dictionary of Paper, American Paper Institute, New York, Fourth Edition, 1980
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997 Comment: says formed in 'sulfate' process