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Colorless, aromatic hydrocarbon Solvent. Decahydronaphthalene is a very strong solvent that dissolves oils, fats, waxes, resins, and Rubber. It has been used as a substitute for turpentine, as a stain remover, and as a cleaning fluid. At one point, Decalin® was used as a varnish remover for oil paintings (Doerner 1934).

Synonyms and Related Terms

Decalin® [DuPont]; decaline; hydroterpene; napthalane; naphthane; DeKalin; Kelalin

Chemical structure



  • Moderate fire risk.
  • Flammable (flash point = 58C).
  • Skin and eye irritant.
  • ThermoFisher: SDS

Resources and Citations

Soluble in ethanol, ether. Insoluble in water.

Composition C10H18
CAS 91-17-8
Melting Point -43.2 C
Density 0.870, 0.893 g/ml
Molecular Weight mol. wt. = 138.25
Refractive Index 1.4697-1.4811
Boiling Point 185-194 C

Resources and Citations

  • M.Doerner, The Materials of the Artist, Harcourt, Brace & Company, 1934.
  • 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 2903
  • CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: ref. index=1.474

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