Thiele Melting Point Tube made of high quality, heavy duty, 3.3 borosilicate glass Can be used to determine the melting point of organic compounds Total length of 6" (150mm) 1" (25mm) tube diameter Perfect for any home, school, or professional science laboratory Thiele Melting Point Tube…

Glass capillary tubes 4" length 0.05" Outer Diameter 100 Pack Capillary tubes in a container with an opening that one tube can come through Borosilicate Glass Capillary Melting Tubes are 4" in length and have a 0.05" outer diameter capillary tubes that are particularly useful for determining…