glass vacuum filter holder
A glass vacuum filter holder is a sophisticated laboratory apparatus designed for efficient filtration of liquids and solutions through various filter media. This essential piece of equipment consists of a high-quality borosilicate glass construction that offers exceptional chemical resistance and durability. The system typically comprises two main components: an upper funnel section and a lower receiving flask, connected by a ground glass joint that ensures an airtight seal. The holder features a perforated glass or sintered glass support plate that securely holds filter papers or membrane filters in place during the filtration process. When connected to a vacuum source, it creates negative pressure that accelerates the filtration process, making it significantly more efficient than gravity filtration. The design includes a side arm for vacuum connection and often incorporates a spring clamp or metal clip to maintain the assembly's stability during operation. The transparent glass construction allows for clear visibility of the filtration process, enabling users to monitor progress and identify any potential issues immediately. This apparatus is particularly valuable in analytical chemistry, pharmaceutical research, and quality control laboratories where precise and contamination-free filtration is crucial.