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Aldrich® air-sensitive chemistry glass lab kit

joint: ST/NS 14/20 grease-free, threaded

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joint: ST/NS14/20 grease-free, threaded

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General description

Glassware with greaseless, threaded 14/20 joints require no clamps. The unique threaded nut with O-ring connectors in this system automatically separate ground-glass joints when unscrewed and reduces the chance of breakage.

This glassware kit is compatible with Aldrich Schlenk-type glassware components which are specifically designed for air and moisture-sensitive manipulations and reactions. Accessorize the basic glassware kit with Schlenk components to extend the range of applications to include drying and evaporation, extractions, filtrations, recrystallizations, washing degassing and more. Supplied in a foam-lined storage case. Thermoplastic screw caps with Viton O-rings usable to 140 °C.


See the Threaded Ground Glass Tutorial to see how threaded joints work.

Legal Information

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC

Kit Components Also Available Separately

Product No.

  • Z167460A. Drying tube for Aldrich® student glass kitSDS

  • Z167533B. Vacuum adapter, Joint: ST/NS 14/20SDS

  • Z167444C. Vacuum distillation adapter with threaded 14/20 jointsSDS

  • Z167495D. Round-bottom flask for Aldrich® student glass kitSDS

  • Z167452E. Three-way adapter, 75° angle, female ST/NS 14/20, male ST/NS 14/20 (2)SDS

  • Z167517F. Aldrich® Schlenk-type Vigreux distilling columnSDS

  • Z167436G. Claisen adapter for Aldrich® student glassware kitSDS

  • Z167576H. Aldrich® Schlenk-type hex head stopperSDS

  • Z167509I. Three-neck round-bottom flask for Aldrich® student glass kitSDS

  • Z167479J. Round-bottom flask for Aldrich® student glass kitSDS

  • Z167525K. Aldrich® Schlenk-type Liebig condenserSDS

  • Z167568L. Thermometer adapter, male ST/NS 14/20SDS

  • Z167487M. Round-bottom flask for Aldrich® student glass kitSDS

  • Z122513N. Gas-inlet tube for Aldrich® Glassware kitsSDS

  • Z167541O. Dropping funnel for Aldrich® student glass kitSDS

  • Z166901Screw-cap, bushing and O-ring set for Aldrich® student glass kit, set of 1SDS

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