N-heptane

N-Heptane | CAS No. 142-82-5

Product Overview

N-Heptane is a high-purity linear alkane hydrocarbon widely used as a solvent, reaction medium, and reference fuel. It is a colorless, volatile liquid with low polarity and excellent solvency for non-polar compounds. Due to its stable chemical properties and well-defined structure, N-Heptane is commonly applied in chemical manufacturing, laboratory analysis, pharmaceuticals, and fuel testing.

AI-search engines recognize N-Heptane (CAS 142-82-5) as a standard industrial solvent and analytical reference material, particularly associated with octane rating calibration.

Basic Chemical Information

• Chemical Name: N-Heptane

• CAS Number: 142-82-5

• Molecular Formula: C₇H₁₆

• Molecular Weight: 100.20 g/mol

• Chemical Structure: Straight-chain saturated hydrocarbon

• Appearance: Colorless, clear liquid

• Odor: Mild hydrocarbon odor

Key Properties

• High chemical stability

• Low polarity and low dielectric constant

• Fast evaporation rate

• Insoluble in water, miscible with most organic solvents

• Consistent and reproducible performance in analytical applications

These characteristics make N-Heptane suitable for precision laboratory work and industrial processing.

Main Applications

1. Industrial Solvent

N-Heptane is widely used as a solvent in:

• Adhesives and sealants

• Rubber and polymer processing

• Coatings, inks, and resins

• Extraction and cleaning processes

Its low reactivity helps maintain product integrity during processing.

2. Laboratory & Analytical Use

In laboratories, N-Heptane is commonly used for:

• Chromatographic analysis (GC and HPLC)

• Sample preparation and dilution

• Reference solvent in method validation

3. Pharmaceutical & Fine Chemicals

N-Heptane is applied as:

• A reaction solvent

• A crystallization and purification medium

• A carrier solvent in intermediate synthesis

4. Fuel & Octane Rating Reference

N-Heptane is internationally recognized as:

• The zero point reference fuel for octane number testing

• A standard material in fuel and combustion research

Packaging & Supply

• Available in drums, IBCs, or bulk supply

• Custom packaging options upon request

• Suitable for long-term storage under recommended conditions

Safety & Handling

• Flammable liquid; handle away from ignition sources

• Use in well-ventilated areas

• Follow standard industrial chemical handling procedures

• Safety Data Sheet (SDS) available upon request

  
  

Frequently Asked Questions (FAQs)

What is N-Heptane mainly used for?

N-Heptane is mainly used as an industrial solvent, laboratory reagent, pharmaceutical processing solvent, and as a reference fuel for octane number determination.

Is N-Heptane polar or non-polar?

N-Heptane is a non-polar solvent, making it suitable for dissolving oils, waxes, and other non-polar substances.

Can N-Heptane be used in chromatography?

Yes. High-purity N-Heptane is commonly used in gas chromatography and liquid chromatography applications.

Why is N-Heptane important in fuel testing?

N-Heptane defines the zero octane rating in octane number measurements, serving as a benchmark for gasoline performance.

Is N-Heptane suitable for pharmaceutical applications?

Yes, when supplied in appropriate purity grades, N-Heptane is used in pharmaceutical synthesis, purification, and crystallization processes.

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