n-Heptane

n-Heptane is a clear, colorless, volatile hydrocarbon solvent used in extraction, chemical processing and selected laboratory applications. Its non-polar character makes it useful for dissolving oils, waxes and other non-polar substances.

Brand:
aozun
Synonym:
Heptane
Appearance:
colorless clear liquid
CAS No.:
142-82-5
Molecular Formula:
C7H16
Molecular Weight:
100.20 g/mol
EINECS:
205-563-8
Flash Point:
-4 ℃
Solubility:
insoluble in water

Availability:



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Product Description

Product Description

Product Overview

n-Heptane is a straight-chain alkane with the formula C₇H₁₆. It is used as a solvent and processing medium in applications ranging from adhesives and coatings to chemical synthesis and purification. The required grade depends on the process and its impurity limits.

Key Specifications and Typical Properties

Item	Value
CAS No.	142-82-5
Molecular Formula	C₇H₁₆
Molecular Weight	100.20 g/mol
Appearance	Clear, colorless liquid
Polarity	Non-polar
Boiling Point	Approximately 98.4°C
Density	Approximately 0.68 g/mL at 20°C
Solubility in Water	Practically insoluble

Physical values are indicative. Assay, water content and impurity limits depend on the selected grade and agreed specification.

Main Applications

1. Industrial Solvent

Adhesives and sealants: Solvent for compatible rubber and resin systems.
Coatings and inks: Used in selected solvent-based formulations.
Extraction and cleaning: Helps dissolve oils, waxes and other non-polar materials.

2. Laboratory and Analytical Use

Sample preparation: Extraction and dilution of compatible non-polar samples.
Chromatography: Suitable grades are used in normal-phase liquid chromatography and selected analytical methods.
Grade selection: Water, residue and detector-related impurity limits should match the analytical method.

3. Pharmaceutical and Fine Chemical Processing

Reaction medium: Solvent in selected synthesis routes.
Crystallization: Solvent or antisolvent in validated crystallization processes.
Purification: Used where the impurity profile and residual solvent controls meet process requirements.

4. Fuel and Octane Rating Reference

Octane scale: n-Heptane is assigned an octane number of zero and is used with isooctane in primary reference fuel blends.
Grade requirement: Octane testing requires reference-fuel grade meeting the applicable test method; ordinary solvent grade should not be assumed suitable.

Packaging and Supply

Packaging type, net weight and shipment quantity are confirmed with the quotation. Please specify your required grade, quantity and destination port.

Packaging must be compatible with n-heptane and suitable for flammable-liquid transport.

Safety, Handling and Storage

Fire prevention: Highly flammable liquid and vapor. Keep away from heat, sparks and flames; control static electricity during transfer.
Exposure control: Use suitable ventilation, chemical-resistant gloves and eye protection. Vapor exposure may cause dizziness or drowsiness.
Aspiration hazard: May be fatal if swallowed and enters airways. Do not induce vomiting; seek immediate medical attention.
Storage: Keep containers tightly closed in a cool, well-ventilated area suitable for flammable liquids, away from strong oxidizers.
Environmental protection: Prevent release to drains and waterways. Follow the current SDS for handling and disposal.

Frequently Asked Questions

Is n-Heptane the Same as Mixed Heptanes?

n-Heptane refers to the straight-chain C₇ compound. Products sold as “heptanes” may contain other isomers or hydrocarbons. Compare the n-heptane assay and composition rather than relying on the product name alone.

Does High Purity Automatically Mean HPLC Grade?

No. HPLC suitability also depends on requirements such as UV absorbance, water content and residue after evaporation. Select material against the analytical method and the grade-specific specification.