Product Description
Add a thermometer, gas inlet or bleed tube to a small-scale distillation without sacrificing the main joint. A second neck on this pear-shaped flask gives extra access while the narrow bottom keeps small residues easy to heat and recover. It is a practical choice for microscale and teaching labs.
This listing is for Kimble catalog number 294760-0050: KONTES Pear Shaped Two Neck Heavy Wall Distilling Flask, 14/20, 50 mL. This 50 mL heavy wall flask has a 14/20 center joint and a side joint, and is made from low extractable 33 expansion borosilicate glass meeting USP Type I and ASTM E438, Type I, Class A. The heavy wall provides strength for heating and vacuum, and the pear shape helps concentrate the final residue. LIGHT LABS supplies the complete DWK Life Sciences line, including Kimble, Wheaton and DURAN labware.
Key Features
- Two necks – Center joint plus a side joint for accessories.
- Pear shape – Concentrates residues for complete recovery.
- Heavy wall – Strength under heat and vacuum.
- 14/20 center joint – Fits small-scale glassware.
Specifications
| Catalog Number | 294760-0050 |
| Brand | Kimble (DWK Life Sciences) |
| Description | KONTES Pear Shaped Two Neck Heavy Wall Distilling Flask, 14/20, 50 mL |
| Sold As | Each |
| Glass | Borosilicate glass 3.3 (33 expansion), low extractable |
| Standards | USP Type I; ASTM E438, Type I, Class A |
| Wall | Heavy wall |
| Center joint | 14/20 |
| Side joint | 10/18 or 14/20 |
Applications
- Small-scale distillation
- Vacuum distillation with bleed tube
- Microscale synthesis
