Heptadecane CAS 629-78-7

FAQ - Technical & Supply Chain

• Q:

  What is Heptadecane CAS 629-78-7?

  A: Heptadecane, also called n-Heptadecane, is a straight-chain alkane with the molecular formula C17H36, CAS 629-78-7, and EINECS 211-108-4. It is a non-polar hydrocarbon supplied as a colorless liquid or white crystalline solid depending on the ambient temperature.
• Q:

  Why is Heptadecane used as a phase change material?

  A: Its melting point of about 22 deg C is close to comfortable room temperature, so it can store and release latent heat during melting and solidification. This makes it useful in ambient thermal regulation, microencapsulation, textiles, and building material systems.
• Q:

  What latent heat and phase transition data are relevant for Heptadecane?

  A: Literature values commonly place the melting point near 22 deg C and the latent heat of fusion around 213-216 J/g, although encapsulated or blended systems may show modified thermal values. The boiling point is about 302 deg C.
• Q:

  Can Heptadecane be used for high-temperature thermal storage?

  A: No, it is not suited to high-temperature thermal storage. Its phase transition near 22 deg C is intended for low-temperature or ambient temperature regulation rather than elevated-temperature heat storage.
• Q:

  What are other industrial uses for Heptadecane besides PCM applications?

  A: It is also used as a chemical intermediate, a specialized non-polar solvent or carrier fluid, and an analytical reference material. Its water insolubility and hydrocarbon compatibility support those applications.
• Q:

  How should Heptadecane be stored?

  A: Store it in a cool, dry, well-ventilated area in tightly sealed containers, away from direct sunlight, heat sources, and strong oxidizing agents. Because it can solidify near ambient temperature, temperature control should be considered during handling and transfer.