Tall oil

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Description

A black, resinous liquid obtained as a byproduct from the sulfate, or kraft, paper pulping of pine wood. Tall oil contains 35-60% rosin acids and 50-60% fatty acids (oleic and linoleic). It is mixed with lime to produce an inexpensive, oily liquid that dries to a brittle yellow film. Tall oil is used in the manufacture of soaps, greases, paints, alkyd resins, linoleum, fungicides, cutting oils, and asphalt emulsions.

Synonyms and Related Terms

tallol; talleol; liquid rosin

Other Properties

Acid no. =170-180 Saponification no. = 172-185 Iodine no. 120-188.

Density 0.95-0.1
Refractive Index ~ 1.5

Sources Checked for Data in Record

  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 795
  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 9210
  • Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
  • The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
  • Pam Hatchfield, Pollutants in the Museum Environment, Archetype Press, London, 2002
  • Guy Weismantel, Paint Handbook, McGraw-Hill Book Company, New York, 1981