Product Description
Dropping Funnels Cylindrical,With Stopcock,Screw Type PTFE Key Rotaflow Stopcock & Stem With Cone But Without Stopper:-
Catalogue No. Capacity ml. Socket Size Cone Size
362/01 25 B 14 B 14
362/02 50 B 14 B 14
362/03 100 B 14 B 14
362/04 100 B 29 B 19
362/05 250 B 29 B 19
362/06 500 B 29 B 19
362/07 1000 B 24 B 24
362/08 150 B 24 B 24
362/09 250 B 24 B 24
362/10 500 B 24 B 24
Precise and Controlled Liquid TransferThe Dropping Funnels feature a screw-type PTFE stopcock that provides exceptional flow control during reagent transfer. This precise adjustment prevents accidental overflows or spillage, which is crucial when handling hazardous or reactive chemicals during titration or stepwise additions in chemical synthesis.
Superior Chemical Compatibility and DurabilityThanks to the use of high-purity glass and a PTFE stopcock, these funnels are compatible with a wide range of chemicals, including strong acids, bases, and organic solvents. Their robust construction also ensures long-lasting performance, even after repeated cleaning and sterilization cycles.
Reusable Design for Laboratory EfficiencyAutoclavable and easily cleaned, the dropping funnels support sustainable lab operations. After proper cleaning, they can be safely reused, which helps to reduce waste and control costs in high-throughput research and industrial environments.
FAQs of Dropping Funnels Cylindrical,With Stopcock,Screw Type PTFE Key:
Q: How do I operate the stopcock on the Dropping Funnel with PTFE key?
A: To use the funnel, gently turn the screw-type PTFE stopcock to control the flow of liquid. Adjusting the key allows you to start, stop, or regulate the rate of reagent addition with accuracy. Always ensure the stopcock is firmly closed when not dispensing.
Q: What chemicals can these dropping funnels safely handle?
A: These funnels are designed with glass and PTFE components, making them suitable for use with strong acids, bases, and a variety of organic solvents commonly encountered in chemical laboratories.
Q: How should the funnel be cleaned and sterilized after use?
A: The dropping funnels are autoclavable, allowing for sterilization in standard laboratory autoclave cycles. After use, wash thoroughly with suitable cleaning agents, rinse with deionized water, and dry before autoclaving.
Q: When should I use a cylindrical dropping funnel in laboratory procedures?
A: Use a cylindrical dropping funnel whenever controlled, dropwise addition of a reagent is required, such as during titration, synthesis, or when adding liquids to reactions sensitive to rapid addition.
Q: Are these PTFE stopcock funnels suitable for high-precision work?
A: Yes, the precisely machined bottom outlet and screw-type PTFE stopcock provide excellent control over liquid dispensing, making them ideal for high-precision laboratory tasks.
Q: Can the dropping funnels be reused, and if so, how often?
A: With proper cleaning and sterilization, these funnels are built for repeated use in laboratory settings. Their chemical resistance ensures durability across many cycles.
Q: What are the main benefits of using this product in a chemical laboratory?
A: These funnels enhance user safety, offer precise reagent addition, and are compatible with a wide range of chemicals. Their autoclavability and reusability further add value by supporting laboratory hygiene and sustainability.