Our inventory of more than 1,000 items consists of a broad spectrum of chemicals including solvents (bulk and reagent), acids and bases, organic and inorganic chemicals, oils, compressed gases, dry ...

Apparatus Test tube Description and function A thin, cylindrical container, usually made of glass. Used to hold chemical and biological substances. Apparatus Boiling tube Description and function ...

Schilling gas-effusion apparatus. Invented by N. H. Schilling, 1879. Frosted on inner tube: E. M. Sargent & Co, Chicago, Made in Germany. Donated by Oberlin College ...

Both cotton swabs are simultaneously inserted into opposite ends of a long glass Graham’s Law apparatus and placed on an overhead projector. A white ring of solid ammonium chloride forms where the two ...