Verification of aluminium with morin
Chemicals needed
distilled water
aluminium sulfate
methanol morin solution F T R 11-23/25 S (1/2)-7-16-24-45
Equipment needed
test tube
optionally blacklight lamp
Test procedure
- One adds a spatula-tipful aluminium sulfate into the test tube and dissolves this with approx. 1 ml water.
- Immediately a green-yellow fluorescent color arises, which under blacklight is especially beautiful to observe.
Disposal
The reaction solution can be discharged into the drainage.
Elucidation
Morin forms with aluminium(III) a fluorescent complex.
Structural formula of Morin
Photos
Fluorescent aluminium morin complex
Literature
derived from VII.2, "Aluminiumnachweis als fluoreszierender Morin-Farblack", p. 76, [3]