Overview: A lab demonstration converting monosodium glutamate (MSG) to glutamic acid, crystallizing it, then converting to ammonium glutamate and performing hydrogen peroxide oxidation to form subsinic acid. The process includes acid dissolution, precipitation, ammonium salt formation with CO2 evolution, controlled addition of hydrogen peroxide at elevated temperatures, and a final attempt to precipitate subsinic acid with sulfuric acid. A damp crystalline product is obtained; yield is estimated around 25% with much material remaining in filtrate. The team notes the method's simplicity but warns about peroxide hazards, and discusses confirming product identity and potential further optimization.
