For any chemical purchaser, understanding product specifications and the methods used to verify them is fundamental to ensuring quality and performance. Hexanoic acid (CAS 142-62-1), a widely used organic intermediate, is no exception. Buyers and manufacturers alike must adhere to strict quality control measures to guarantee its suitability for diverse applications, from sensitive pharmaceutical syntheses to food-grade flavorings.

The primary specification for hexanoic acid is its purity, typically expressed as a percentage, often requiring a minimum of 99%. This purity is most commonly determined using Gas Chromatography (GC). GC analysis separates the components of a sample based on their boiling points and affinities for a stationary phase, allowing for precise quantification of hexanoic acid and identification of any impurities. Other analytical techniques, such as titration, can also be employed to confirm the acid content.

Another critical specification is the appearance. Hexanoic acid is generally described as a colorless to pale yellow liquid. Deviations from this description can indicate the presence of impurities or degradation products. Visual inspection is the initial step, but color can be quantified using standardized color scales like APHA (American Public Health Association). Manufacturers often report a maximum APHA value.

Key physical properties also serve as important quality indicators. These include:

  • Density: Typically around 0.927 g/cm³ at 25°C.
  • Refractive Index: Usually within the range of 1.415-1.418 at 20°C.
  • Melting Point: Approximately -3°C.
  • Boiling Point: Around 202-203°C at standard pressure.

These parameters are verified using established scientific methods and are crucial for confirming the identity and quality of the product. For example, a discrepancy in the refractive index might suggest contamination or an incorrect compound.

At NINGBO INNO PHARMCHEM CO.,LTD., we are committed to delivering hexanoic acid that meets the highest quality standards. We rigorously test our product according to industry-accepted methods and provide detailed Certificates of Analysis (CoA) with each shipment. This commitment ensures that our customers, whether they are purchasing for pharmaceutical, food, or industrial applications, receive a product they can trust. We welcome inquiries regarding our specifications and quality assurance processes, and are happy to provide quotes for your hexanoic acid needs.