Description
Ensure smooth, accurate, and controlled dropwise addition of reagents under closed or inert conditions with our Constant Pressure Graduated Dropping Funnel. Crafted from high-quality borosilicate 3.3 glass, this funnel features a precision ground glass stopcock and a 19/22 standard taper joint for secure, leak-resistant connections. The pressure-equalizing side arm balances pressure between the funnel and the reaction vessel, allowing consistent dropwise flow without the need for repeated venting—ideal for air-sensitive and moisture-sensitive reactions. The clear glass body is graduated with easy-to-read volume markings, enabling precise monitoring of liquid addition throughout your experiment.
Key Features & Benefits:
-
Constant Pressure (Equalizing) Design: The integral side arm equalizes pressure between the funnel and the reaction flask, ensuring steady dropwise addition and preventing backpressure or vacuum issues.
-
Ground Glass Stopcock: Provides smooth, precise flow control. Chemically resistant and ideal for applications where a glass stopcock is preferred or required. Interchangeable for easy replacement and maintenance.
-
Graduated Body: Clear volume markings on the borosilicate glass allow for accurate monitoring of liquid dispensed and remaining.
-
19/22 Standard Taper Joint: Ensures a tight, leak-resistant fit with 19/22 compatible flasks, adapters, and stoppers.
-
Premium Borosilicate 3.3 Glass: Excellent thermal shock resistance and chemical durability for long service life.
-
Multiple Capacity Options: Choose from 25ml, 60ml, 125ml, or 250ml to suit your specific reaction scale.
-
Autoclavable: Suitable for standard sterilization procedures.
-
Package Includes: Constant Pressure Graduated Dropping Funnel with Glass Stopcock and 19/22 Joint.
