Class B Borosilicate Glass Volumetric Flask with Polyethylene Stopper, Blue Graduations Capacity:10mL Integral side socket accepts a

Integral side socket accepts a thermometer or vacuum adapter while the pear-shaped body drives volatile fractions toward the distillation neck during bench-scale organic work

resulting in flakes of fake snow

Three-inch pumice hand sample reveals highly vesicular texture so porous the specimen floats on water for volcanic rock identification

Erlenmeyer Flask with a 1000mL capacity and narrow neck is made of heavy-duty borosilicate 3

Class B Borosilicate Glass Volumetric Flask with Polyethylene Stopper, Blue Graduations Capacity:10mL Integral side socket accepts aBorosilicate glass volumetric flask with a chemical resistant polyethylene stopper and Class B tolerance, suited for teaching bench dilution and stock preparation.