Borosilicate 3.3 Ground Glass Stopper with Hexagonal Head and Conical Base
Ground glass stopper in borosilicate LBG 3.3 with hexagonal head and conical base. Designed for airtight closure on glassware with standard ground glass joints. The hexagonal profile allows secure hand-tightening without tools. Borosilicate 3.3 resists organic solvents, dilute acids and moderate bases. Compatible with reflux assemblies, distillation and reagent storage. Autoclavable.
In stock
SKU:
21233
As low as:
€3.01
As low as:
Borosilicate 3.3 Ground Glass Stopper with Hexagonal Head and Conical Base
Borosilicate LBG 3.3 closure stopper with hexagonal head and conical base. For airtight sealing of glassware fitted with standard ground glass joints.
Features
- Material:Borosilicate LBG 3.3
- Head:Hexagonal — allows secure hand-tightening, even when wearing gloves
- Base:Conical, for firm fit and hermetic seal
- Chemical resistance:Organic solvents, dilute acids, moderate bases
Applications
Closure of flasks, distillation columns, burettes and any glassware with standard ground glass joints. Used in organic chemistry and quality control laboratories where rubber or PTFE stoppers are not suitable.
Well suited for reagent storage in ground-neck flasks — glass neither absorbs nor contaminates.
Technical Data
- Material:Borosilicate LBG 3.3
- Head shape:Hexagonal
- Base:Conical
- Autoclave:Yes, 121 °C
Practical Advantages
The hexagonal head prevents slipping — precise tightening and loosening without grip aids. Borosilicate 3.3 is chemically inert and withstands repeated autoclaving without deformation.
| Brand | LBG |
|---|
Write Your Own Review