Product Description
Bumping during rotary evaporation can carry sample into the condenser and undo a careful workup. This bottom vapor tube trap catches splashes and foam before they leave the flask, and because it has no drain holes, dried residue in the trap is not rewetted and washed back.
This listing is for Kimble catalog number 570200-2519: KONTES Bottom Vapor Tube Trap, 250 mL, 19/22, Without Hole. The trap has a 24/40 top joint and a 14/20, 19/22 or 24/40 bottom joint in 100, 250 and 500 mL sizes. The 570260 series uses a modified square-bead joint for a better seal on rotary evaporators. It is made from low-extractable 33 expansion borosilicate glass meeting USP Type I and ASTM E438 Type I, Class A. Add it to your LIGHT LABS order alongside the rest of your glassware and closures.
Key Features
- No drain holes – Dry residue in the trap stays dry rather than being rewetted.
- Square-bead option – Modified joint seals better on rotary evaporator equipment.
- Multiple bottom joints – 14/20, 19/22 or 24/40 to fit your flasks.
- Three sizes – 100, 250 and 500 mL trap volumes.
- Low-extractable borosilicate – Meets USP Type I and ASTM E438 Type I, Class A.
Specifications
| Catalog Number | 570200-2519 |
| Brand | Kimble (DWK Life Sciences) |
| Description | KONTES Bottom Vapor Tube Trap, 250 mL, 19/22, Without Hole |
| Sold As | Each |
| Material | Borosilicate glass 3.3 (33 expansion), low extractable |
| Standards | USP Type I; ASTM E438, Type I, Class A |
| Top joint | 24/40 |
| Bottom joints | 14/20; 19/22; 24/40 |
| Drain holes | None |
| Options | Standard joint; square bead joint |
Available Options
- 570200-0114 – KONTES Bottom Vapor Tube Trap, 100 mL, 14/20, Without Hole
- 570200-0119 – KONTES Bottom Vapor Tube Trap, 100 mL, 19/22, Without Hole
- 570200-0124 – KONTES Bottom Vapor Tube Trap, 100 mL, 24/40, Without Hole
- 570200-2514 – KONTES Bottom Vapor Tube Trap, 250 mL, 14/20, Without Hole
- 570200-2524 – KONTES Bottom Vapor Tube Trap, 250 mL, 24/40, Without Hole
- 570200-5014 – KONTES Bottom Vapor Tube Trap, 500 mL, 24/40, Without Hole
- 570200-5024 – KONTES Bottom Vapor Tube Trap, 500 mL, 2, 24/40, Without Hole
- 570260-0114 – KONTES Bottom Vapor Tube Trap, 100 mL, 14/20, Square Bead
- 570260-0124 – KONTES Bottom Vapor Tube Trap, 100 mL, 24/40, Square Bead
- 570260-2514 – KONTES Bottom Vapor Tube Trap, 250 mL, 14/20, Square Bead
- 570260-2524 – KONTES Bottom Vapor Tube Trap, 250 mL, 24/40, Square Bead
- 570260-5024 – KONTES Bottom Vapor Tube Trap, 500 mL, 24/40, Square Bead
Applications
- Rotary evaporation
- Preventing bump-over into condensers
- Solvent removal after extraction
- Organic synthesis workup
