Extractor / Concentrator Glassware Products & Reviews

These 500 mL PYREX® Kuderna Danish Concentrators are supplied with Keck clamps instead of spring hooks. The complete apparatus consists of a 3-Ball Snyder column (with 24/40 Standard Taper joints), a 500 mL flask (with 24/40 Standard Taper top and 19/22 Standard Taper lower joint), and a graduated 10 mL tube with an outer 19/22 Standard Taper joint. The tube graduations go from 0 to 2 mL in 0.1 mL increments and from 3 mL on i…

Brand: PYREX®

These PYREX® replacement 10 mL tubes fit the Kuderna Danish Apparatus and have an outer 19/22 Standard Taper joint. The tube graduations go from 0 to 2 mL in 0.1 mL increments and from 3 mL on in 1.0 mL increments.

These 500 mL PYREX® replacement flasks fit the Kuderna Danish Apparatus and have a 24/40 Standard Taper top and 19/22 Standard Taper lower joint.

This 10 mL PYREX® replacement Kuderna-Danish tube has a 19/22 outer Standard Taper upper joint. The tube graduations go from 0 to 2 mL in 0.1 mL increments and from 3 mL on in 1.0 mL increments.

This complete 250 mL PYREX® Kuderna-Danish Concentrator apparatus consists of a 3-ball Snyder column with 24/40 Standard Taper joints (2158-3CO), a 250 mL flask with a 24/40 outer Standard Taper upper joint and 19/22 inner Standard Taper lower joint, and a 10 mL graduated tube with 19/22 outer Standard Taper joint. The tube graduations go from 0 to 2 mL in 0.1 mL increments and from 3 mL on in 1.0 mL increments. If further con…

This 250 mL PYREX® replacement Kuderna-Danish flask has a 24/40 outer Standard Taper upper joint and 19/22 inner Standard Taper lower joint and includes a pair of 1 1/4 inch stainless steel springs.

This 25 mL PYREX® replacement Kuderna-Danish tube has a 19/22 outer Standard Taper upper joint. The tube graduations go from 0 to 2 mL in 0.1 mL increments and from 3 mL on in 1.0 mL increments.

This 3-ball PYREX® Snyder column has a 24/40 Standard Taper inner joint on the lower end and a 24/40 Standard Taper outer joint on the upper end.

This complete 500 mL PYREX® Kuderna-Danish Concentrator apparatus consists of a 3-ball Snyder column with 24/40 Standard Taper joints (2158-3CO), a 500 mL flask with a 24/40 outer Standard Taper upper joint and 19/22 inner Standard Taper lower joint, and a 10 mL graduated tube with 19/22 outer Standard Taper joint. The tube graduations go from 0 to 2 mL in 0.1 mL increments and from 3 mL on in 1.0 mL increments. If further con…

This 500 mL PYREX® replacement Kuderna-Danish flask has a 24/40 outer Standard Taper upper joint and 19/22 inner Standard Taper lower joint and includes a pair of 1 1/4 inch stainless steel springs and two sizes of Keck clamps.

These 1L PYREX® blunt tip cones are for use with heavy sediments, where ability to read small volumes is unimportant. Graduated from 0 to 1 mL in 0.1 mL divisions, 1 to 10 mL in 0.5 mL and 10 to 40 mL in 1 mL; also marked at 1000 mL. The blunt tip increases its ruggedness and cleaning ease.

This PYREX® 500 mL Kjeldahl flask is a replacement for the Kjeldahl Nitrogen Distilling Apparatus (No. 3340-500) used for determining nitrogen in organic compounds. The Kjeldahl flask has an outer Standard Taper 29/42 joint. For replacement Graham condensers, see No. 2540-200.

Brand: PYREX®

Brand: PYREX®

This PYREX® 1L flat bottom flask has a No. 27 Standard Taper PYREX® stoppered neck and a side delivery tube, terminating in a 19/38 Standard Taper joint. It is a replacement flask for the General Purpose Distillation Apparatus No. 3360-1L. For replacement stoppers, see No. 7650. For replacement Graham condensers, see No. 2540-200.

This PYREX® 500 mL flat bottom flask has a No. 27 Standard Taper PYREX® stoppered neck and a side delivery tube, terminating in a 19/38 Standard Taper joint. It is a replacement flask for the General Purpose Distillation Apparatus No. 3360-500. For replacement stoppers, see No. 7650. For replacement Graham condensers, see No. 2540-200.

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.

Brand: PYREX®

Brand: PYREX®

Brand: PYREX®