Make Fluorescein
In this video we synthesize Fluorescein. The procedure is very simple...
Mix 0.1 gram each of phthalic anhydride and resorcinol (I bought both at chemkitdepot.com) in a test tube and add 4-5 drops conc. sulfuric acid. Heat gently for 2 minutes. Allow to cool, add 5cc water, and make basic with sodium hydroxide. Mix well and filter off any solids. Store in an air tight bottle.
Видео Make Fluorescein канала myst32YT
Mix 0.1 gram each of phthalic anhydride and resorcinol (I bought both at chemkitdepot.com) in a test tube and add 4-5 drops conc. sulfuric acid. Heat gently for 2 minutes. Allow to cool, add 5cc water, and make basic with sodium hydroxide. Mix well and filter off any solids. Store in an air tight bottle.
Видео Make Fluorescein канала myst32YT
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