The Floating Tin Sponge—Chemical Demonstration Kit
By: The Flinn Staff
Item #: AP4425
With the Floating Tin Sponge Oxidation–Reduction Chemical Demonstration Kit, bubbles of hydrogen produced in a reaction float the aggregate tin to the surface like a sponge. Before students’ eyes, shiny tin crystals form.
Before your very own eyes, you can actually see the formation of shiny tin crystals. The tin is produced by the addition of zinc to a tin(II) chloride solution. Bubbles of hydrogen produced in the reaction float the aggregate tin to the surface like a sponge. Teacher Demonstration Notes included.
Concepts: Oxidation–reduction, single replacement reactions, electrochemical series, acids, metals. Time Required: 20 minutes Chemicals Provided: Tin(II) chloride solution and zinc.