Step 1 Pour water in a clear container and allow it to stand. Iron can be found in drinking water as ferrous iron which is soluble and ferric iron which is insoluble. It requires oxidations in order to change it from its dissolved state to particulate iron so it can be removed. Many iron chelation complexes are water soluble. Dissolved iron is a bit trickier. We call this “clear water iron.” Because water with ferric iron contains particulates, the iron can be filtered out with the right media. Then, there’s ferrous or soluble iron, which is dissolved in the water and invisible. No matter if it is ferrous or ferric iron, you need the best water softener for iron removal because your health matters a lot. Footnote 24, Footnote 25 This is followed by liquid/solid separation, which usually consists of filtration only, although sedimentation is sometimes employed prior to filtration. For the best answers, search on this site https://shorturl.im/axqyV. So here we have got some perfect Ferrous iron is present in soluble form in water, but still, it will look crystal clear. Iron carbonate has a water solubility of 60 mg/L, iron sulphide of 6 mg/L, and iron vitriol even of 295 g/L. Since potassium sulphate, ammonium nitrate, calcium chloride, and iron acetate are all salts; and methyl chloride is merely a gas; it should be considered that this gas is the least soluble in water. Iron(II) in solution. Many iron(II) salts are soluble in water, such as iron(II) chloride FeCl 2 and iron (II) sulfate FeSO 4.Unlike their iron(III) counterparts, these salts dissolve in pure water without significant hydrolysis, and without affecting the pH. Iron removal often consists of oxidation of soluble Fe(II) to insoluble Fe(III) using chlorine, potassium permanganate or ozone as the oxidants. Many iron chelation complexes are water soluble. You can determine if you need to have the iron concentration in your water measured by observing its color and other properties. Ferric iron is insoluble above 3.5 pH level and gives it a rusty color. Iron carbonate has a water solubility of 60 mg/L, iron sulphide of 6 mg/L, and iron vitriol even of 295 g/L. We get answers from Resources: answers.yahoo.com answers.com google.com youtube.com pubchem.ncbi.nlm.nih.gov reference.com www.quora.com Is Fe2S3 ( Iron(III) sulfide ) Soluble or Insoluble in water ?