Black liquor

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1) A dark liquid obtained from the sulfate papermaking process. After the removal of the cellulose pulp, the remaining liquid, called black liquor, contains sodium carbonate, tall oil resins, lignin, and carbon black particles.

2) An aqueous solution of iron acetate that is often used as a mordant.

Resources and Citations

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997