Labware and Lab Supplies Products & Reviews

These PYREX® Hirsch funnels have a 20mm diameter fine porosity fritted disc with a porosity range of 4 to 5.5 µm. These fritted disc funnels are very useful in preparative work, or in making separations where it is necessary to wash the precipitate and redissolve with chemicals which would attack filter paper. The angle of the funnel body facilitates the removal of precipitates. Porosity is controlled in manufacture, and discs…

These PYREX® Hirsch funnels have a 20mm diameter medium porosity fritted disc with a porosity range of 10 to 15 µm. These fritted disc funnels are very useful in preparative work, or in making separations where it is necessary to wash the precipitate and redissolve with chemicals which would attack filter paper. The angle of the funnel body facilitates the removal of precipitates. Porosity is controlled in manufacture, and dis…

These PYREX® Hirsch funnels have a 30mm diameter coarse porosity fritted disc with a porosity range of 40 to 60 µm. These fritted disc funnels are very useful in preparative work, or in making separations where it is necessary to wash the precipitate and redissolve with chemicals which would attack filter paper. The angle of the funnel body facilitates the removal of precipitates. Porosity is controlled in manufacture, and dis…

These PYREX® Hirsch funnels have a 30mm diameter fine porosity fritted disc with a porosity range of 4 to 5.5 µm. These fritted disc funnels are very useful in preparative work, or in making separations where it is necessary to wash the precipitate and redissolve with chemicals which would attack filter paper. The angle of the funnel body facilitates the removal of precipitates. Porosity is controlled in manufacture, and discs…

These PYREX® Hirsch funnels have a 30mm diameter medium porosity fritted disc with a porosity range of 10 to 15 µm. These fritted disc funnels are very useful in preparative work, or in making separations where it is necessary to wash the precipitate and redissolve with chemicals which would attack filter paper. The angle of the funnel body facilitates the removal of precipitates. Porosity is controlled in manufacture, and dis…

This PYREX® distilling apparatus is for determining water content in petroleum or bituminous products. It is graduated upwards from the stopcock to 3 mL in 0.2 mL divisions, and from 3 mL to 20 mL in 0.5 mL divisions. For replacement stopcock plugs, see No. 7680. For replacement retaining clips, see No. 7280. Reference: Barrett method B-2. Also can be used as Dean Stark distillation apparatus specified in British Standard 756,…

These 200 mL PYREX® Soxhlet extractors have a bulb in siphon tube near the top of tube to facilitate cycling of the siphoning action. PYREX® extraction thimbles, paper filters or glass wool are used to support the sample. The siphon tube is protected from accidental damage by the vapor tube. The inner (bottom) standard taper joint is 24/40 and the outer (top) standard taper joint is 55/50. For glass extraction thimbles with fr…

These 85 mL PYREX® Soxhlet extractors have a bulb in siphon tube near the top of tube to facilitate cycling of the siphoning action. PYREX® extraction thimbles, paper filters or glass wool are used to support the sample. The siphon tube is protected from accidental damage by the vapor tube. The unit has a 24/40 inner Standard Taper joint and a 45/50 outer Standard Taper joints at the top and bottom. For glass extraction thimbl…

These 50 mL PYREX® Soxhlet extractors have a bulb in siphon tube near the top of tube to facilitate cycling of the siphoning action. PYREX® extraction thimbles, paper filters or glass wool are used to support the sample. The siphon tube is protected from accidental damage by the vapor tube. The unit has a 24/40 inner Standard Taper joint and a 34/45 outer Standard Taper joints at the top and bottom. For glass extraction thimbl…

These 500 mL PYREX® Soxhlet extractors have a bulb in siphon tube near the top of tube to facilitate cycling of the siphoning action. PYREX® extraction thimbles, paper filters or glass wool are used to support the sample. The siphon tube is protected from accidental damage by the vapor tube. The unit has a 29/42 inner Standard Taper joint and a 71/60 outer Standard Taper joints at the top and bottom. For glass extraction thimb…

This is a 1L PYREX® replacement flask with a 29/42 outer Standard Taper joint for the No. 3840-XL 1L extractor system. The tubulation O.D. on the condenser is 10mm.

This 500 mL PYREX® extractor system consists of a Soxhlet extractor with 24/40 inner Standard Taper joint on the bottom and a 55/50 outer Standard Taper joint on the top, an Allihn condenser with a 55/50 inner Standard Taper joint on the bottom and a flask with a 24/40 outer Standard Taper joint. The tubulation O.D. on the condenser is 10mm. For replacement Soxhlet extractors, see No. 3740. For replacement flasks, see No. 4100…

This is a PYREX® replacement Allihn condenser with a 55/50 inner Standard Taper joint on the bottom for the No. 3840-L 500 mL extractor system. The tubulation O.D. on the condenser is 10mm.

This 250 mL PYREX® extractor system consists of a Soxhlet extractor with 24/40 inner Standard Taper joint on the bottom and a 45/50 outer Standard Taper joint on the top, an Allihn condenser with a 45/50 inner Standard Taper joint on the bottom and a flask with a 24/40 outer Standard Taper joint. The tubulation O.D. on the condenser is 10mm. For replacement Soxhlet extractors, see No. 3740. For replacement flasks, see No. 4100…

This is a PYREX® replacement Allihn condenser with a 45/50 inner Standard Taper joint on the bottom for the No. 3840-M 250 mL extractor system. The tubulation O.D. on the condenser is 10mm.

This 125 mL PYREX® extractor system consists of a Soxhlet extractor with 24/40 inner Standard Taper joint on the bottom and a 34/45 outer Standard Taper joint on the top, an Allihn condenser with a 34/45 inner Standard Taper joint on the bottom and a flask with a 24/40 outer Standard Taper joint. The tubulation O.D. on the condenser is 10mm. For replacement Soxhlet extractors, see No. 3740. For replacement flasks, see No. 4100…

This is a PYREX® replacement Allihn condenser with a 34/45 inner Standard Taper joint on the bottom for the No. 3840-S 125 mL extractor system. The tubulation O.D. on the condenser is 10mm.

This 1L PYREX® extractor system consists of a Soxhlet extractor with a 29/42 inner Standard Taper joint on the bottom and a 71/60 outer Standard Taper joint on the top, an Allihn condenser with a 71/60 inner Standard Taper joint on the bottom and a flask with a 29/42 outer Standard Taper joint. The tubulation O.D. on the condenser is 10mm. For replacement Soxhlet extractors, see No. 3740. For replacement flasks, see No. 3840-1…

This is a PYREX® replacement Allihn condenser with a 71/60 inner Standard Taper joint on the bottom for the No. 3840-XL 1L extractor system. The tubulation O.D. on the condenser is 10mm.

These tubes are designed for general chromatographic analysis. The tops are tooled for rubber stopper fit and the tubes are fabricated with sealed-in coarse porosity fritted discs. The outflow tubes are large in diameter to eliminate the smearing of the definition bands of effluent caused by the tube being filled, and the solvent mixed before being expelled. The outflow tubes are long enough to protrude through a rubber stoppe…

These tubes are designed for general chromatographic analysis. The tops are tooled for rubber stopper fit and the tubes are fabricated with sealed-in coarse porosity fritted discs. The outflow tubes are large in diameter to eliminate the smearing of the definition bands of effluent caused by the tube being filled, and the solvent mixed before being expelled. The outflow tubes are long enough to protrude through a rubber stoppe…

These tubes are designed for general chromatographic analysis. The tops are tooled for rubber stopper fit and the tubes are fabricated with sealed-in coarse porosity fritted discs. The outflow tubes are large in diameter to eliminate the smearing of the definition bands of effluent caused by the tube being filled, and the solvent mixed before being expelled. The outflow tubes are long enough to protrude through a rubber stoppe…

The 10x300mm PYREX® column is designed for general chromatographic column separations. The top is tooled for a No. 00 rubber stopper fit. A PTFE (Polytetrafluorethylene) Product Standard stopcock with a No. 2 plug is provided for better column control. Sealed into the column in a coarse porosity (40 to 60 µm) fritted disc. The volume below the disc is minimized to prevent mixing and to allow clear, sharp, band definition. For…

This is an efficient 250 mL PYREX® extraction apparatus for general purpose use. Consists of a Soxhlet extractor with a 24/40 inner Standard Taper joint on the bottom and a 45/50 outer Standard Taper joint on the top, a special Friedrichs condenser with a 45/50 inner Standard Taper joint on the bottom and a flask with a 24/40 outer Standard Taper joint. The condenser tubulation O.D. is 10mm. For a replacement extractor only, s…

This is a replacement PYREX® Friedrichs condenser for the 250 mL Extractor System. This special Friedrichs condenser has a 45/50 inner Standard Taper joint on the bottom. The condenser tubulation O.D. is 10mm.