Lignin sulfonate

Description

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

lignosulfonate

Physical and Chemical Properties

• Forms a colloidal solution in water.
• Insoluble in most organic solvents

Resources and Citations

• 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