Absorbent Lab Pillows, 18-Pack Essential Supplies_Protective Equipment Essential Supply Used as the negative-control reference

Used as the negative-control reference in urinalysis-technique demonstrations

mounted on a rod stand for tabletop reference

isolating ion behavior in electrolysis and voltaic-cell investigations

Diatomic-spectrum nitrogen tube at 26cm with a 10cm central capillary

Low-mass aluminum inner vessel at 100 by 75mm with parallel sides and rolled rim

Absorbent Lab Pillows, 18-Pack Essential Supplies_Protective Equipment Essential Supply Used as the negative-control referencePack of 18 absorbent spill pillows each holding 750 mL of solvent, sized at 4 by 14 by 1 inches for rapid cleanup of chemical spills in school and stockroom laboratories.