Description
Achieve accurate, controlled addition of liquids under inert atmospheres or closed systems with our Teflon Stopcock Graduated Constant Pressure Dropping Funnel. Designed for demanding laboratory applications, this pressure-equalizing funnel features a PTFE (Teflon) stopcock for smooth, chemically resistant flow control, and a 14/20 standard taper joint for secure connections. The clear borosilicate glass body is graduated with easy-to-read volume markings, allowing you to monitor liquid addition in real time. The built-in side arm equalizes pressure between the funnel and the reaction flask, ensuring steady dropwise addition without the need for repeated venting.
Available in 10ml, 25ml, 60ml, and 125ml capacities, this constant pressure dropping funnel is an essential tool for organic synthesis, air-sensitive reactions, and any procedure requiring precise reagent addition.
Key Features & Benefits:
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PTFE (Teflon) Stopcock: Chemically inert and highly resistant to aggressive solvents, acids, and bases. Provides smooth, precise flow control without seizing or contamination.
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Constant Pressure Design: The integral side arm equalizes pressure between the funnel and the reaction vessel, allowing consistent dropwise addition and preventing backpressure or vacuum issues.
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Graduated Body: Clear volume markings on the borosilicate glass allow for accurate monitoring of liquid dispensed and remaining.
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14/20 Standard Taper Joint: Ensures a tight, leak-resistant fit with 14/20 compatible flasks, adapters, and stoppers.
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Premium Borosilicate 3.3 Glass: Excellent thermal shock resistance and chemical durability for long service life.
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Multiple Capacity Options: Choose from 10ml, 25ml, 60ml, or 125ml to suit your specific reaction scale.
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Autoclavable: Suitable for standard sterilization procedures.
