What are the melting point and boiling point of n-propanol (cas no 71 23 8)?

n-Propanol (CAS No. 71-23-8), also known as 1-propanol or propyl alcohol, is an important industrial alcohol solvent widely used in pharmaceuticals, coatings, electronics, and chemical synthesis.

Melting Point and Boiling Point of n-Propanol

Under standard atmospheric pressure (1 atm):

• Melting point of n-propanol: −126 °C
• Boiling point of n-propanol: 97.2 °C

Physical Properties of n-Propanol (CAS 71-23-8)

Chemical properties of n-Propanol

• Flammability: With a flash point around 15°C, 1-Propanol is highly flammable and requires careful handling and storage away from ignition sources.
• Reactivity: As a primary alcohol, it undergoes typical reactions such as esterification, oxidation to propionaldehyde or propionic acid, and conversion to alkyl halides.
• Solubility: Infinitely soluble in water and many organic solvents, making it ideal for formulating solutions and mixtures.
• Toxicity: While generally considered less toxic than some other alcohols, high exposure can lead to CNS depression, dizziness, and eye irritation. Proper safety measures are always recommended when handling.

1-Propanol (n-Propanol) Applications

• Organic Synthesis: 1-Propanol is used to produce pharmaceutical intermediates and pesticide intermediates, making it widely employed in pharmaceutical and pesticide manufacturing.
• Industrial Applications: n-Propanol is employed in industries such as nitro spray paints, cosmetics, dental cleansers, insecticides, fungicides, inks, and plastics.
• Solvent: It serves as a solvent, chromatographic reagent, and chromatographic analyte.
• Fuel: n-Propanol can also be blended with alkanes and alkenes as a fuel mixture to increase combustion temperatures.
• Ethanol Substitute: 1-Propanol (n-Propanol) can replace ethanol with lower boiling points, such as serving as a solvent for certain synthetic resins, ethyl cellulose, polyvinyl butyral, vegetable oils, natural rubber, and resins.

n-Propanol vs Other Alcohols

Compared with similar solvents:

• Higher boiling point than ethanol
• Lower volatility than methanol
• Stronger solvency for certain resins than isopropyl alcohol (IPA)

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