The main type of laboratory tongs are Crucible tongs, Beaker tongs, and Utility tongs. The majority of laboratory tongs are made from: stainless steel, steel, and combined steel materials such as ...

After several seconds the flames are extinguished and the towel appears unharmed by the fire. Using crucible tongs, dip a lab towel into a beaker containing a 50/50 mixture of isopropyl alcohol and ...