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n-Heptane

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Chemical Name	n-Heptane
Synonyms	Dipropylmethane; Heptyl Hydride; NSC 62784; Skellysolve C; n-Heptane
CAS Number	142-82-5
Molecular Formula	C₇H₁₆
Appearance	Clear Colourless Liquid
Molecular Weight	100.2
Storage	20°C
Solubility	Chloroform, Ethyl Acetate, Methanol (Very Slightly)
Category	Building Blocks; Miscellaneous;
Applications	n-Heptane is used a component of blended fuel compositions as well as a solvent in organic chemical reactions.
	Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package

N-Heptane: Properties, Uses, and Safety

N-Heptane is a straight-chain alkane with seven carbon atoms and the chemical formula C7H16. It's a colorless liquid with a gasoline-like odor and is used in various applications. In this article, we'll explore the properties, uses, and safety considerations of n-heptane.

Properties of N-Heptane

N-Heptane has some unique physical and chemical properties that make it useful in various industries.

Physical Properties

Appearance: Colorless liquid
Odor: Gasoline-like
Melting point: -91°C
Boiling point: 98°C
Density: 0.684 g/cm3
Solubility: Insoluble in water

Chemical Properties

Formula: C7H16
Molar mass: 100.20 g/mol
Flash point: -4°C
Autoignition temperature: 215°C
Vapor pressure: 44 mmHg at 20°C

Uses of N-Heptane

N-Heptane has a wide range of applications in various industries. Here are some of the most common uses:

Solvent

N-Heptane is used as a solvent in various applications, such as:

Chemical synthesis: As a solvent for organic reactions
Paints and coatings: As a solvent for oil-based paints and coatings
Adhesives: As a solvent for various types of adhesives
Rubber industry: As a solvent for rubber products

Fuel

N-Heptane is used as a reference fuel in gasoline engine testing. It's used as a standard for octane ratings, which measure a fuel's resistance to knocking in an engine.

Laboratory

N-Heptane is used as a laboratory reagent in various applications, such as:

Chromatography: As a non-polar solvent for separating organic compounds
Spectroscopy: As a reference standard for certain types of spectroscopy
Calibration: As a standard for certain types of analytical measurements

Other Uses

N-Heptane is used in various other industries, such as:

Cosmetics: As a solvent for fragrances and other cosmetic ingredients
Textiles: As a solvent for cleaning fabrics
Plastics: As a blowing agent in the production of certain types of foam plastics

Safety Considerations

N-Heptane can be hazardous if not handled properly. Here are some safety considerations you should keep in mind:

N-Heptane is flammable and can ignite at low temperatures. Store it in a cool, dry place away from sources of ignition.
N-Heptane is harmful if ingested, inhaled, or absorbed through the skin. Avoid direct contact with the compound.
N-Heptane can cause eye and skin irritation. Wear appropriate protective equipment when handling the compound.

N-Heptane: FAQs

1. Is n-heptane toxic?

N-Heptane is harmful if ingested, inhaled, or absorbed through the skin. Avoid direct contact with the compound.

2. Is n-heptane flammable?

Yes, n-heptane is flammable and can ignite at low temperatures. Store it in a cool, dry place away from sources of ignition.

3. What is n-heptane used for?

N-Heptane is used as a solvent, fuel, and laboratory reagent in various applications, such as chemical synthesis, paints and coatings, rubber industry, chromatography, and spectroscopy.