This category covers reusable glass apparatus for teaching, research and quality control labs. It includes test tubes in light-wall, rimless, side-arm and screw-cap styles (bakelite caps with rubber liners), graduated glass centrifuge tubes with stoppers or screw caps, crystallizing dishes, glass Petri dishes, evaporating basins, calibrated pycnometers, 300 mL B.O.D. bottles, and ground-joint pieces such as Claisen, vacuum, reducing and expansion adapters and stoppers. Larger setups include Soxhlet extraction apparatus, Kjeldahl distillation sets, water-jacketed flasks, distillation apparatus and organic chemistry glassware kits, plus porcelain and plastic spot plates.

Check the glass type first: borosilicate handles heating and temperature changes far better than soda glass. Match ground-joint sizes exactly, such as 24/40 or 29/42, so adapters, stoppers and flasks fit. Compare capacity, dimensions, wall thickness, graduation or calibration, closure type and pack quantity, and confirm the speed rating before using glass tubes in a centrifuge.

Reusable Glassware: common questions

What is a crystallizing dish used for?

A crystallizing dish is a shallow, flat-bottomed glass dish with straight sides. It is used to evaporate solutions so crystals can form, and also as a water or ice bath, a cover dish, or a container for holding small items. Borosilicate dishes can be heated gently, and versions with a spout make pouring easier.

When should I use glass centrifuge tubes instead of plastic?

Glass centrifuge tubes are chosen for organic solvents that attack plastics, for work where plastic leachables could interfere, and when tubes will be cleaned and reused. They can break under high forces, so use them only within the speed or g-force rating given by the maker, with properly fitting adapters or cushions in the rotor.

What does 24/40 mean on lab glassware?

24/40 is a standard taper ground-glass joint size. The first number is the approximate diameter in millimeters at the wide end of the joint, and the second is the length of the ground section in millimeters. Male (cone) and female (socket) joints with the same numbers fit together, and reducing or expansion adapters connect different sizes.

What is the difference between borosilicate and soda-lime glass?

Borosilicate glass has low thermal expansion, so it tolerates heating and rapid temperature changes much better than soda-lime glass and is more resistant to chemical attack. Soda-lime glass costs less and is used for items that are not heated, such as some jars and display pieces. For heating, autoclaving or flame work, choose borosilicate.

Reusable Glassware

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  1. Tube,Fermentation,Large,17X140mm
    Manufacturer: Kimble Chase
    Tubes Fermentation Large 17 x 140 Vertical Tube O.D. and Length (mm) 17 x 140. Bulb O.D. (mm) 38 KIMAX tube with a bulb and a glass foot. Larger in size than 46150. Vertical tube has a closed rounded top. (1 per EA)
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    was $74.15 Special Price $71.35
  2. Dist Column 3-Section 2440
    Manufacturer: Kimble Chase
    Distillation and Reactors Column Improved Snyder [standard taper] Joints 24/40. Column x Chamber Length (mm) 170 x 50. Number of Chambers 3. Approx. Overall Height (mm) 250 Improved design speeds evaporation and reduces hold-up within the column. Recoveries are excellent i.e. (1 per EA)
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    was $304.75 Special Price $303.59
  3. Filter Stick Apparatus
    Manufacturer: Kimble Chase
    Petrochemical Apparatus Filter Stick with Hooks and Springs Complete Apparatus used in the determination of oil content and solvent extractables in petroleum waxes. (1 per EA)
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    was $156.63 Special Price $152.58
  4. Dist Head Condenser
    Manufacturer: Kimble Chase
    Condensers Cold Finger [standard taper] Joint [standard taper] Joint 29/42. Hose Connections #2. Approx. Overall Height (mm) 305. Approx. Length Below Joint (mm) 195 Extended offset lower tip for drop control. (1 per EA)
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    $195.93
  5. Dist Head PTFE Comp 24/40
    Manufacturer: Kimble Chase
    Distillation and Reactors Head Variable Reflux with PTFE Plugs Column [standard taper] Joint 24/40. Condenser [standard taper] Joints 29/42. Receiver [standard taper] Joint 24/40. Hose Connections #2. Approx. (1 per EA)
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    was $1,378.98 Special Price $1,362.52
  6. Column Only 3-Chambr 19/22
    Manufacturer: Kimble Chase
    Concentrators Column Micro Distilling Without Hooks Number of Chambers 3. [standard taper] Joint 19/22. Column x Chamber Height (mm) 100 x 15. Approx. Overall Height (mm) 122 Micro-type distilling column designed to prevent flooding while retaining residue material. (1 per EA)
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    was $127.85 Special Price $125.38
  7. Concentrator Tube,15ml,19/22
    Manufacturer: Kimble Chase
    Concentrator Tube for Kuderna-Danish Concentrators Ungraduated 15ml concentrator tube is compatible with the Kuderna-Danish Concentrators with a polyacetal clamp. The tube is ungraduated and has a standard taper joint size of 19/22. (1 per EA)
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    was $59.43 Special Price $58.29
  8. Evap Concentrator 250ml
    Manufacturer: Kimble Chase
    Kuderna-Danish Concentrators Graduated Concentrates trace amounts of sample dissolved in organic solvents. Useful in sample preparation before analysis with petroleum ether or hexane. Fast evaporation with low hold-up. Includes three-chamber column 250ml flask 10ml tube and a polyacetal clamp. (1 per EA)
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    was $522.48 Special Price $518.11
  9. Concentrator Tube 10ml
    Manufacturer: Kimble Chase
    Concentrator Tube for Kuderna-Danish Concentrators Graduated 10ml concentrator tube is compatible with the Kuderna-Danish Concentrators with springs. The tube is graduated from 0 to 1ml in 0.1ml divisions and from 2 to 10ml in 1ml divisions. Standard taper joint size of 19/22. (1 per EA)
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    was $94.21 Special Price $92.27
  10. Concentratr Tube 10ml 2425
    Manufacturer: Kimble Chase
    Concentrators Tube Concentrator Without Hooks Cap. (mL) 10. [standard taper] Joint 24/25. Grads. x Subdiv. (mL) 0-1 x 0.12-10 x 1. Approx. Overall Height (mm) 100 For use with Kuderna-Danish and other evaporative concentrators. May be stoppered for later analysis or storage. (1 per EA)
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    was $97.84 Special Price $95.88
  11. Concentratr Tube 10ml 1922
    Manufacturer: Kimble Chase
    Concentrators Tube Concentrator Tapered Style Without Hooks Cap. (mL) 10. [standard taper] Joint 19/22. Grads. x Subdiv. (mL) 0-5 x 0.55-10 x 1. Approx. Overall Height (mm) 100 Optional concentrator tube for use with Kuderna-Danish and other evaporative concentrators. (1 per EA)
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    was $89.18 Special Price $87.41
  12. Evap Trap 14/20 100ml W/O Hole
    Manufacturer: Kimble Chase
    Trap Rotary Evaporator 100ml capacity. Lower inner standard taper joint 14/20. 160mm approximate overall height. Each flask has a 24/40 outer standard taper ground joint at the top. (1 per EA)
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    was $215.63 Special Price $215.42
  13. Evap Trap 24/40 100ml
    Manufacturer: Kimble Chase
    Rotary Evaporator Trap Top Vapor Tube Capacity (mL) 100. Bottom Inner [standard taper] Joint 24/40. Top Outer [standard taper] Joint 24/40. Approx. Overall Height (mm) 190 Design provides for expanded volume for organic mixtures that have a tendency to foam excessively. (1 per EA)
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    was $230.91 Special Price $230.58
  14. Extrn Thimble Size 21 Ec
    Manufacturer: Kimble Chase
    Extraction Thimble All-Glass Extra Coarse Porosity Body O.D. (mm) 25. Disc Dia.(mm) 20. Approx. Height (mm) Above Frit 70. Approx. Height (mm) Overall 85. Approx. Capacity (ml) 25 All-glass construction allows visual examination during the extraction and subsequent weighing. (1 per EA)
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    was $107.05 Special Price $106.97
  15. Sparger Fritted 5ml 18mm
    Manufacturer: Kimble Chase
    Purge and Trap Sparger U-Shaped O-I Number 209015 Sparger Fritted 5 mL 18 mm O.D. Neck These U-shaped spargers are designed for use with O-I Analytical Purge and Trap Sample Concentrators. Fritted spargers are recommended for potable water and wastewater samples. (1 per EA)
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    $200.84
  16. 12X75 Boro Mark-M Bz White
    Manufacturer: Kimble Chase
    Prelabeled Culture Tube Disposable. Borosilicate glass. For use in cell washers and water baths as writing on label is permanent. Fused-on white label provides ideal surface for marking. Label size is 19x34.9mm. Tube size is 12x75mm. Volume: 5mL. (1000 per CS )
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    was $188.98 Special Price $155.77
  17. Disp Tube 500C Hose Conn
    Manufacturer: Kimble Chase
    Gas Sampling Gas Washing Bottle Dispersion Tube C 500 mL Tall form with fritted cylinder to maximize dispersion. Available in two porosities: extra coarse (EC) and coarse (C). Supplied complete with hooks and two 2 springs. A 675300-0029 polyacetal clamp will work in place of the springs. (1 per EA)
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    was $288.39 Special Price $288.03
  18. Hybridization Tube 35X300
    Manufacturer: Kimble Chase
    Hybridization Tubes 35x300mm. Perform hybridization of multiple Northern Southern or Western blots (up to five per tube) in a single tube using nylon mesh sheets to separate the hybridization membranes. Significantly reduce probe volumes. Includes 45mm polypropylene caps and silicone O-rings. (2 per CS )
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    $303.63
  19. Adapter Univ 5-8 mm 14/10
    Manufacturer: Kimble Chase
    Adapters Inlet Vacuum Bevel-Seal Medium and Full Length [standard taper] Joints [standard taper] Joint 14/10. Accommodation Range (mm) 5-8. Nom. Size (in.) 1/4. O-Ring Size 108. Modified GPI Thread 15-415. Hose Connection #1 With a hose connection for vacuum or the introduction of gases. (1 per EA)
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    $78.46
  20. Condenser Adjustabl-Finger
    Manufacturer: Kimble Chase
    Condensers Cold Finger Condenser Micro Adjustable [standard taper]14/10 [standard taper] Joint 14/10 Drip tip on the bottom directs drops into the collar of Hickman distillation heads. (1 per EA)
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    $165.27
  21. Tube Micro A-W 14/10 5ml
    Manufacturer: Kimble Chase
    Tubes Schlenk Tube [standard taper] 14/10 Joints [standard taper] 14/10 Joint with Hose Connection. Tube Body O.D. (mm) 15. Approx. Overall Height x Width (mm) 142 x 48 Designed to minimize the loss of volatile solvents while manipulating under normal conditions. (1 per EA)
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    $71.19
  22. Air Cond/Chr Column 100 mm
    Manufacturer: Kimble Chase
    Labsets kits Organic Chemistry Microscale Threaded Research MICROFLEX Item L Air Condenser/Chromatography Column 100 mm 13-425 The 747000 Series MICROFLEX Kits feature versatile threaded chaste connections. They can be assembled rightside up or upside down providing great versatility. (1 per EA)
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    $32.22
  23. Tube Connecting 1/4in-28
    Manufacturer: Kimble Chase
    Tubes Threaded Connecting Tube Thread Size 1/4-28. Approx. Tube O.D. (mm) 7. Approx. Overall Length (mm) 150 Connecting tube with a 1-1.5 mm I.D. capillary. (1 per EA)
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    $238.06
  24. Microflex Kit
    Manufacturer: Kimble Chase
    Labsets kits Organic Chemistry Microscale Thermoplastic Connectors Williamson Standard Williamson Standard Microscale Kit These MICROFLEX Kits feature the patented chaste connectors and specially tooled glassware components providing great versatility. (1 per EA)
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    $488.81
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