Product Description
Add reagents dropwise to a reaction under control, without grease contaminating your chemistry. A PTFE stopcock gives smooth, precise flow adjustment and will not seize, while the 24/40 joint mounts the funnel directly on a reaction flask for a secure, sealed setup.
This listing is for Kimble catalog number 633030-0500: Ungraduated Jointed Addition Funnel With Hex Head Stopper, 500 mL. All versions have a 24/40 standard taper bottom joint. The 633030 funnels come with a glass hex head stopper and drip tip, 633031 has a drip tip but no stopper, and 29034F has a PTFE Varibor metering plug for fine control and a glass pennyhead stopper. Sizes are 250 and 500 mL, in low extractable 33 expansion borosilicate glass. LIGHT LABS ships genuine DWK Life Sciences products with knowledgeable support from our Englewood, Colorado team.
Key Features
- PTFE stopcock – Grease-free, non-seizing flow control.
- 24/40 bottom joint – Mounts directly on reaction flasks.
- Drip tip – Controlled dropwise delivery on 633030 and 633031.
- Metering option – 29034F has a Varibor plug for fine control.
- Stopper choices – Hex head, pennyhead or no stopper.
Specifications
| Catalog Number | 633030-0500 |
| Brand | Kimble (DWK Life Sciences) |
| Description | Ungraduated Jointed Addition Funnel With Hex Head Stopper, 500 mL |
| Sold As | Each |
| Glass | Borosilicate glass 3.3 (33 expansion), low extractable |
| Standards | USP Type I; ASTM E438, Type I, Class A |
| Bottom joint | 24/40 standard taper |
| Stopcock | PTFE |
| Stopcock bore | 2 mm; 4 mm |
| Graduations | None |
Available Options
- 29034F-500 – Ungraduated Jointed Addition Funnel With Glass Pennyhead Stopper, 500 mL
- 633030-0250 – Ungraduated Jointed Addition Funnel With Hex Head Stopper, 250 mL
- 633031-0250 – Ungraduated Jointed Addition Funnel, No stopper, 250 mL
Applications
- Dropwise reagent addition
- Organic synthesis
- Controlled exothermic reactions
- Titration-style additions
