Ferrous sulfate monohydrateCAS No. : 13463-43-9EINECS No. : 231-753-5Chemical formula: FeSO4 · H2O Another name: green alumAppearance: brown powder English name: Ferrous sulfate monohydrate Traits: odorless. Weathering in dry air. Dissolved in water, almost insoluble in ethanol. The aqueous solution of the slow oxidation in the air, in the heat faster oxidation. Alkali or exposure to light can accelerate its oxidation. Irritant. Quality index : Test ItemsUnit Of MeasureLab Test ResultsFeS04·H2O %≥98.098.6TiO2 %≤0.50.42Water insoluble matter%≥0.50.53As %≤0.00050.0003Free acid（H2SO4）%≤2.01.7Heavy metal content（Pb）%≤0.0020.0018Purposes: for purifying agent, gas purifying agent, herbicid...