For B2B procurement professionals and research scientists, understanding the precise technical specifications and quality control measures associated with chemical compounds is non-negotiable. Diethyl Adipate, identified by its CAS number 141-28-6, is no exception. Its efficacy in applications ranging from plasticizers to pharmaceutical intermediates relies heavily on its adherence to strict quality standards. This article delves into the critical technical parameters and the importance of quality control when sourcing Diethyl Adipate.

Key technical specifications for Diethyl Adipate typically include its appearance, purity, molecular formula, molecular weight, boiling point, melting point, density, and refractive index. As sourced from reputable manufacturers, Diethyl Adipate is generally described as a clear, colorless to yellow liquid. Purity levels are often specified, with common grades ranging from ≥97% to ≥99% (GC). The molecular formula is C10H18O4, yielding a molecular weight of approximately 202.25 g/mol. Important physical constants include a boiling point of around 251°C and a melting point in the range of -20°C to -19°C. The density is typically around 1.01 g/mL at 25°C, and the refractive index (n20/D) is approximately 1.427. Adhering to these specifications is crucial for ensuring consistent performance in any formulation.

The importance of quality control (QC) cannot be overstated when procuring industrial chemicals like Diethyl Adipate. Manufacturers employ rigorous QC protocols to verify that each batch meets the established specifications. This often involves analytical techniques such as Gas Chromatography (GC) for purity analysis, spectroscopy for structural confirmation, and titrations for assay determination. Certificates of Analysis (CoA) are essential documents that accompany each shipment, detailing the results of these QC tests for the specific batch. For pharmaceutical intermediate applications, adherence to Good Manufacturing Practices (GMP) and detailed documentation are also critical.

When engaging with a supplier, inquiring about their quality management systems and the availability of documentation like Safety Data Sheets (SDS), Product Specifications (PS), and Certificates of Origin (COO) is vital. These documents provide comprehensive information on safe handling, chemical properties, origin, and quality assurance. For businesses in Europe, compliance with regulations like REACH is also a consideration, and suppliers should be able to provide relevant information.

For those looking to buy Diethyl Adipate, especially in bulk, it is beneficial to source from established manufacturers who prioritize quality. Chinese suppliers, in particular, have invested heavily in advanced manufacturing technologies and quality assurance systems to compete on a global scale. Understanding the technical data sheet provided by the manufacturer and comparing it against your specific application requirements will help you make an informed purchasing decision.

In conclusion, a thorough understanding of Diethyl Adipate's technical specifications and the quality control measures implemented by its suppliers is paramount for successful industrial procurement. By prioritizing high-quality materials and reliable suppliers, businesses can ensure the performance, safety, and consistency of their end products. Whether you require it for polymer modification, solvent applications, or as a pharmaceutical intermediate, always verify the technical data and quality certifications.