- Ingredient Name:Ferrous Sulfate
- Functions:Supplement, Color Retention Aid, Supplement
Ferrous Sulfate blue-green crystals or granules, odorless with astringency. In dry air, it’s efflorescent. In moist air, it oxidizes readily to form a brown-yellow, basic ferric sulfate. It’s soluble in water, insoluble in ethanol. Dried: It’s gray-white to beige powder.with astringency.It is mainly composed of FeSO4·H2O and contains a few of FeSO4·4H2O.It’s slowly soluble in cold water (26.6 g / 100 ml, 20 ℃), It will be dissolved quickly when heating.It's insoluble in ethanol.Almost insoluble in 50% sulfuric acid. It is used as nutritional supplement(iron fortifier) and fruit and vegetable colorant.