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Is Ferrous Ammonium Sulfate vegan?

Ferrous Ammonium Sulfate

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Ferrous ammonium sulfate, also known as Mohr's salt, is an inorganic double salt of ferrous sulfate and ammonium sulfate, produced synthetically from mineral sources. It is used as a laboratory reagent and in cosmetics due to its stability against oxidation.

Also known as Diammonium iron bis(sulphate), Mohr's salt, Sulfuric acid, ammonium iron(2+) salt (2:2:1)
INCI name Ferrous Ammonium Sulfate
CAS number 10045-89-3
EC number 233-151-8
CosIng ID 83762
Last reviewed 9 July 2026

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