Kitasato Flask with Side Olive and Ground Glass Joint, Borosilicate 3.3

Kitasato flask manufactured in borosilicate LBG 3.3 glass. Standardised ground glass joint for airtight sealing with a Büchner funnel or filter plate of the matching cone size. Integrated side olive for direct connection to vacuum line.

Specifications

• Material: Borosilicate LBG 3.3 glass
• Joint: Standardised ground glass
• Vacuum connection: Integrated side olive
• Chemical resistance: Common organic solvents, dilute acids and moderate bases
• Autoclave: Yes, 121 °C

Applications

Vacuum filtration with Büchner funnels or sintered glass filter plates. Also suitable as a collection vessel in vacuum distillation setups. The ground glass joint ensures a leak-free seal—critical when working under vacuum.

Routinely used in organic synthesis, pharmaceutical quality control and analytical laboratories.

Practical Advantages

The side olive connects directly to standard laboratory vacuum tubing without adapters. Borosilicate 3.3 tolerates thermal gradients without risk of thermal shock failure. Easy to clean in a laboratory dishwasher or by hand with solvent.

Compatibility

Compatible with Büchner funnels, sintered filter plates and stoppers carrying the same standardised ground glass cone. The side olive accepts standard laboratory vacuum tubing.