Moisture Determination Apparatus, Dean and Stark with Glass Key Stopcock, Borosilicate Glass

Moisture Determination Apparatus, Dean and Stark with Glass Key Stopcock, made from borosilicate glass by Glass Agencies, is a specialized laboratory setup developed for accurate determination of moisture content in various materials through distillation. This apparatus is widely used in chemical laboratories, petroleum testing units, food processing industries, pharmaceutical laboratories, and research institutions where precise moisture analysis is required. Manufactured using high-quality borosilicate glass, it offers excellent resistance to heat, chemicals, and thermal shock, making it suitable for continuous operation with organic solvents and elevated temperatures. The apparatus typically consists of a distillation flask, condenser, and a calibrated receiver, all designed to work together efficiently for effective separation and measurement of water content. During operation, the sample is heated with a suitable solvent, causing moisture to vaporize along with the solvent. The vapors condense and collect in the receiver, where water separates due to density differences, allowing direct reading of moisture content. The transparent glass body provides clear visibility of the entire process, enabling users to monitor boiling, condensation, and collection stages accurately. The receiver is marked with clear graduations for precise measurement of collected water. The glass key stopcock ensures controlled discharge of the collected liquid while maintaining a tight and secure seal during operation. Its smooth movement allows easy handling and supports consistent performance in repeated use. The ground joints are carefully finished to provide leak-resistant connections, preventing vapor loss and ensuring safe operation. The smooth inner surfaces minimize residue buildup, making cleaning and maintenance simple while preventing cross-contamination between samples. This apparatus is suitable for moisture determination in oils, fuels, food products, and various chemical substances. Glass Agencies maintains strict quality control standards during manufacturing to ensure each unit meets industry expectations for accuracy, durability, and performance. The ergonomic design allows easy assembly, handling, and maintenance, supporting efficient laboratory workflows. With strong construction, clear visibility, and a dependable glass key stopcock, this apparatus provides reliable performance and accurate results, making it an important instrument for laboratories focused on precise moisture analysis and consistent testing outcomes.