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A colorless, transparent Solvent derived from Petroleum. Heptane has a mild, gasoline-like odor. It has been used as a very nonpolar, fast-drying solvent.

Synonyms and Related Terms

n-heptane; normal heptane; dipropyl methane; heptyl hydride


  • Volatile.
  • Very flammable. Flash point = -4C (25F)
  • Heptane can be ignited with static charge.
  • Ingestion causes nausea.
  • Aspiration may cause death.
  • Inhalation and skin contact cause irritation, swelling, and at high doses, narcosis.
  • Cisco Chem: SDS

Physical and Chemical Properties

Insoluble in water. Soluble in alcohol, chloroform, ether.

Composition C7H16
CAS 142-82-5
Melting Point -90.7 C
Density 0.684 g/ml
Molecular Weight mol. wt.=100.20
Refractive Index 1.3855
Boiling Point 98.4 C


Properties of Common Solvents

Resources and Citations

  • Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 4694; ref. index=1.3855
  • A Glossary of Paper Conservation Terms, Margaret Ellis (ed.), Conservation Center of the Institute of Fine Arts, New York City, 1998
  • CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: ref. index=1.385

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