1. Schlenk glassware and Schlenk operations refer to specialized glassware for air-free reactions and manipulations developed by Wilhelm Schlenk a German chemist, in the early 20 th century
2. Glassware suppliers www.aceglass.com www.kimble-chase.com
3. Equipment suppliers www.coleparmer.com www.fishersci.com
4. For example Ace catalog number 6955-08
5. A dropping funnel with a PFTE needle valve stopcock for precise adjustments is preferred; see Ace catalog number 7298-05, for example