RECENTLY Doniach and Roitt 1 found that the sera of patients with Hashimoto's disease contained auto-antibodies to human thyroglobulin. They demonstrated this by diffusion-precipitation reactions in ...

Many chemists are aware of the 'chemical garden' demonstration, in which structures that look similar to plants grow from solution. The growths are millimetre-scale hollow tubes that form through a ...

Aliphatic aldehydes and reducing sugars will form a yellow-to-red precipitate with Benedict's reagent, causing the blue solution to appear green-to-red. This reaction can be used as a test for such ...