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Appearance and Properties: Colorless, volatile liquid.

Melting Point (°C): -91

Boiling Point (°C): 98

Relative Density (Water=1): 0.68

Relative Vapor Density (Air=1): 3.45

Saturated Vapor Pressure (kPa): 5.33 (22.3°C)

Heat of Combustion (kJ/mol): 4806.6

Critical Temperature (°C): 266.98°C

Critical Pressure (MPa): 2.74

Flash Point (°C): -4
Ignition Temperature (°C): 204

Upper Explosive Limit % (V/V): 6.7

Lower Explosive Limit % (V/V): 1.1

Solubility: Slightly soluble in water, slightly soluble in methanol, miscible with low-polarity solvents such as diethyl ether, chloroform, and dichloromethane.

n-Heptane is a typical nonpolar solvent, commonly used as a standard for determining octane number, an anesthetic, and a raw material for organic synthesis. It also has wide applications in the pharmaceutical, pesticide, rubber synthesis, chemical fiber synthesis, reagent, and electronic cleaning industries. n-Octane is used as a solvent and a standard substance for chromatographic analysis, and is also used in organic synthesis. With the rapid development of the chemical, pharmaceutical, and electronics industries, my country's demand for n-heptane will increase year by year, especially high-purity n-heptane, which has a broad market prospect. Uses: n-Heptane is mainly used as a standard and solvent for octane number determination, as well as in organic synthesis and the preparation of experimental reagents. n-Heptane is one of the most widely used hydrocarbon solvents in industry today, used as an extraction solvent for animal and vegetable oils and a quick-drying rubber adhesive and rubber solvent. It is also used in the manufacture of cosmetics and as a solvent for cleaning coatings, paints, quick-drying inks, and printing press parts.