Heptane N-Heptane [ CAS: 142-82-5 ] - 10ml

Heptane (n-Heptane)
Other Names: n-Heptane, Dipropylmethane

CAS Number: 142-82-5
Sum Formula: C₇H₁₆
Molar Mass: 100.20 g/mol
Appearance: Colorless, volatile liquid

n-Heptane is a straight-chain alkane hydrocarbon consisting of seven carbon atoms. It is a flammable, non-polar solvent used in a wide range of laboratory and industrial applications, particularly in chemical processing and as a reference fuel component.

Chemical and Physical Properties

Density: 0.684 g/cm³ at 20°C
Melting Point: −90.6°C
Boiling Point: 98.4°C
Solubility in Water: Insoluble
Solubility in Other Solvents: Soluble in alcohol, ether, chloroform, and most organic solvents
Odor: Mild, gasoline-like odor
Vapor Pressure: 48 mmHg at 25°C
Flash Point: −4°C (closed cup)
Autoignition Temperature: ~215°C

Applications

Solvent: Commonly used as a non-polar solvent in laboratories and industrial processes.

Fuel Industry: Used as a reference fuel in engine testing (octane rating scale).

Cleaning Agent: Employed in formulations for degreasing and surface preparation.

Chemical Processing: Serves as an inert medium or carrier in various synthesis processes.

Safety

Signal Word: Danger

GHS Hazard Statements:
H225: Highly flammable liquid and vapor
H304: May be fatal if swallowed and enters airways
H336: May cause drowsiness or dizziness
H411: Toxic to aquatic life with long lasting effects

Precautionary Statements:
P210: Keep away from heat, hot surfaces, sparks, open flames, and other ignition sources. No smoking.
P240: Ground and bond container and receiving equipment.
P241: Use explosion-proof electrical/ventilating/lighting equipment.
P261: Avoid breathing vapors.
P271: Use only outdoors or in a well-ventilated area.
P273: Avoid release to the environment.
P301+P310: IF SWALLOWED: Immediately call a POISON CENTER or doctor.
P331: Do NOT induce vomiting.
P304+P340: IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P403+P235: Store in a well-ventilated place. Keep cool.
P501: Dispose of contents/container in accordance with local/regional/national regulations.

First Aid Measures

Eye Contact: Rinse with plenty of water for several minutes. Seek medical attention if irritation occurs.
Skin Contact: Wash with soap and water. Remove contaminated clothing. Seek medical attention if irritation develops.
Inhalation: Move to fresh air and keep at rest. Seek medical attention if symptoms persist.
Ingestion: Do not induce vomiting. Rinse mouth with water and seek immediate medical help.

Handling and Storage

Storage Conditions: Store in a tightly closed container in a cool, dry, and well-ventilated place. Keep away from heat and sources of ignition.
Handling Precautions: Use spark-proof tools and explosion-proof equipment. Avoid inhalation of vapors. Use personal protective equipment.