Buchner Funnels

The buchner funnel is usually used in filtration.There is a glass frit disc plate on top of the funnel with he pore diameter from 10 to 35 micron. Laboy glass flasks are heavy wall designed,made by hand-blowing to ensure uniform wall thickness, made of high-quality borosilicate glasss and annealed at 800 degree Celsius ,can be heated directly in an open flame and can withstand typical laboratory thermal variations in chemistry processes like heating and cooling.