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A Sintered Glass Buchner Funnel with a 1000 mL capacity is a specialized piece of laboratory equipment primarily used for efficient and high-purity vacuum filtration. Crafted from high-quality borosilicate glass, it offers superior thermal resistance, chemical integrity, and clarity. This type of funnel is distinct from traditional Buchner funnels as it incorporates a porous glass disc, known as a fritted disc or frit, fused directly into its body, eliminating the need for filter paper in many applications.
The integral sintered glass disc acts as the filter medium, allowing for the separation of solid particles from liquids. This design is particularly advantageous when working with sensitive samples or aggressive chemicals that could degrade filter paper. The porosity of the sintered disc can vary, with grades ranging from 0 (very coarse) to 5 (very fine), allowing for selection based on the size of particles to be filtered. A G3 porosity, for instance, is suitable for isolating most common laboratory precipitates and crystals.
With its generous 1000 mL capacity, this Buchner funnel is well-suited for extensive filtration processes in laboratories, reducing the need for frequent refills and enhancing workflow efficiency. The funnel's design promotes optimal liquid flow, leading to faster filtration times, particularly when used in conjunction with a vacuum. Vacuum filtration significantly accelerates the process compared to gravity filtration.
Sintered glass Buchner funnels are designed for compatibility with standard laboratory equipment. They are often used with a vacuum flask (also known as a Buchner flask or filter flask) and can be integrated into existing setups using standard joint sizes, such as 24/40 or 24/29. The robust construction from borosilicate glass ensures durability and resistance to chemical reactions, making it a reliable choice for various applications, including collecting pure solid precipitates and filtering aggressive chemicals. The streamlined design, including a wide opening and smooth surface, also facilitates easier cleaning and quicker turnaround between experiments.

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Borosilicate Glass Baby Feeding Bottle
This baby feeding bottle is made from high-quality borosilicate glass, designed for safety and durability. It is heat resistant, BPA-free, and non-toxic, making it completely safe for babies. The glass does not absorb odor or taste and is easy to clean and sterilize. Suitable for both hot and cold liquids, perfect for daily use.

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All Glassware products available at affordable prices with costmize printing

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Glass Filtration Flask: An Indispensable Tool in the Laboratory
The glass filtration flask, often recognized by its heavy-walled, conical design with a side arm, stands as a cornerstone in countless laboratory procedures. Its robust construction and unique features make it an essential piece of equipment for filtration, a fundamental process in chemistry, biology, and other scientific disciplines.
The primary function of a filtration flask, also known as a Büchner flask or side-arm flask, is to facilitate vacuum filtration. This technique efficiently separates solid particles from a liquid mixture. The side arm on the flask is designed to connect to a vacuum source, such as a vacuum pump or aspirator. When a vacuum is applied, a reduced pressure is created within the flask, drawing the liquid through a filter medium, typically filter paper in a Büchner funnel or a fritted glass funnel, which is seated in the neck of the flask. The solid residue is retained on the filter medium, while the filtered liquid, or filtrate, collects in the flask.
The heavy-walled construction of these flasks is crucial for their safe operation. The reduced pressure created during vacuum filtration can exert significant stress on the glass. Thinner glass would be prone to implosion, posing a serious safety hazard. The reinforced walls provide the necessary strength to withstand the vacuum, ensuring both the integrity of the apparatus and the safety of the user. Furthermore, the conical shape aids in easy pouring and cleaning, and the wide mouth accommodates various sizes of funnels.
Beyond basic filtration, glass filtration flasks find application in a variety of laboratory tasks. They can be used for collecting gases evolved during reactions, serving as a receiving vessel in distillations, or even as a simple reaction vessel when vacuum conditions are required. Their versatility and durability make them a staple in both academic and industrial laboratories worldwide. Proper handling and care, including regular inspection for cracks or chips, are vital to ensure their longevity and safe operation. The glass filtration flask, while seemingly simple, embodies a critical piece of scientific infrastructure, enabling precise and efficient separation processes that are fundamental to scientific discovery and advancement.