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Solids-Liquids Reactions and demonstrations exploring the properties of solids and liquids.
Solids |
Liquids
Scattering and Absorption of Light The effects of passing light through a colloidal suspension of milk in water and through a solution of copper sulfate are shown.
Colloids |
Physical Properties |
Liquids
Viscosity of Liquids The viscosities of water, 2-propanol (rubbing alcohol), ethylene glycol (antifreeze) and vegetable oil are compared. The viscosities of water, hexane, octane, 2,2,4-trimethylpentane and 1-pentanol are measured.
On Capillary Rise and NucleationR. Prasad A comparison of capillary rise and nucleation shows that both phenomena result from a balance between two competing energy factors: a volume energy and a surface energy. This comparison may help to introduce nucleation with capillary rise, a topic familiar to students. Prasad, R. J. Chem. Educ.2008, 85, 1389.
Liquids |
Materials Science |
Metallurgy |
Solids
An Inexpensive Semiautomatic Pressurized Microfiltration DeviceE. Rodríguez-Fernandez, M. A. Vicente, J. J. Criado, and J. L. Manzano Using the device shown, the filtration of small volumes (= 10 mL) of liquid can be facilitated by replacing the vacuum or manual pressure on the piston with pressure exerted by a rubber band on the piston. The filtration is thus conducted in a semiautomatic way. Rodríguez-Fernandez, E.; Vicente, M. A.; Criado, J. J.; Manzano, J. L. J. Chem. Educ.2008, 85, 1051.
Laboratory Equipment / Apparatus |
Liquids |
Microscale Lab
Easy-To-Make CryophorusesRubin Battino and Trevor M. Letcher This article describes some simple and easy-to-make cryophoruses, ideal for demonstrating evaporative cooling to students at all levels. Battino, Rubin; Letcher, Trevor M. J. Chem. Educ.2008, 85, 561.
