Open Top Cylindrical Dropping Funnel with PTFE Key Stopcock, 50mL, Ungraduated, Borosilicate Glass Subcategory_Filtration Equipment while 32mm telescope and collimator

while 32mm telescope and collimator apertures and rack-and-pinion focusing support precise prism and grating spectrometry

Demonstrates the polarity-sensitive forward-bias behavior of a light-emitting diode on a base with two 4mm terminals

sized for higher-resistance work where milliampere-level currents need to be set without overheating the component

promoting airflow through glassware and plasticware during post-wash drying on the bench

Open Top Cylindrical Dropping Funnel with PTFE Key Stopcock, 50mL, Ungraduated, Borosilicate Glass Subcategory_Filtration Equipment while 32mm telescope and collimatorOpen top cylindrical dropping funnel in borosilicate glass holds 50mL with PTFE key stopcock for controlled liquid addition in chemistry procedures.