Product Description
Reproducible dropwise addition is hard to achieve with a standard stopcock. This graduated funnel uses a metering PTFE plug with an adjusting knob, so flow can be dialed anywhere from single drops to full flow and returned to the same rate run after run.
This listing is for Kimble catalog number 633511-0060: KONTES Graduated Addition Funnel, 60 mL. The funnel is made from 33 expansion low-extractable borosilicate glass meeting USP Type I and ASTM E438 Type I, Class A. It incorporates the KONTES Varibor PTFE metering plug with a 2 mm bore, a standard taper joint at the top and a drip-tip joint at the bottom, plus graduations for monitoring the volume added. Order it from LIGHT LABS and keep your lab stocked with genuine DWK Life Sciences products.
Key Features
- Varibor metering plug – Adjusting knob controls flow from dropwise to full flow.
- Reproducible rates – Return to the same addition rate consistently.
- Graduated body – Track the volume of reagent delivered.
- Drip-tip bottom joint – Directs drops cleanly into the flask.
- PTFE plug – No grease needed and chemically inert.
Specifications
| Catalog Number | 633511-0060 |
| Brand | Kimble (DWK Life Sciences) |
| Description | KONTES Graduated Addition Funnel, 60 mL |
| Sold As | Each |
| Material | Borosilicate glass 3.3, low extractable |
| Glass standards | USP Type I; ASTM E438 Type I, Class A |
| Stopcock | PTFE Varibor metering plug, 2 mm bore |
| Top joint | 24/25 |
| Bottom joint | 24/40 with drip tip |
| Graduated | Yes |
Applications
- Controlled reagent addition
- Organic synthesis
- Titration-style dosing
- Exothermic reaction control
