Name: Trapping an intermediate @bobworley7974
Uploaded: 2020-01-16T01:29:31-0400
Duration: 8 min 17 s
Description: This is the reaction between thiosulfate ions from the right with later, the faster moving iron(III) ions. The purple intermediate forms and on mixing, the colour fades.

Microscale calorimetry: Exo- and Endothermic energy changes on mixing small volumes of liquids. @bobworley7974

Uploaded August 2026 | Updated September 2026, 2 weeks ago

All the experiments I have seen have used much larger volumes but 3D printed holder, a plastic pipette bulb and kitchen digital thermometers, means I can do these activities with less than 4 ml of liquid.

Microscale calorimetry: Exo- and Endothermic energy changes on mixing small volumes of liquids.

Detecting carbon dioxide and water when heating hydrocarbons and wood

A Colourful Reaction in Dynamic Equilibrium