21+ Iron Carbonate Formula UK . The molecule is formed by two cations fe 3+ and three carbonate anions co 3 2. Iron carbonate is a water insoluble iron source that can easily be converted to other iron compounds, such as the oxide by heating. Malachite and Iron carbonate | Category: Carbonate mineral ... from c1.staticflickr.com Is iron (iii) carbonate soluble? If not whats the color of iron (iii) carbonate as no, it is not soluble. However, the presence of sand particles in the flowing media. Iron carbonate, or ferrous carbonate, is a chemical compound with formula feco3, that occurs as the mineral siderite. Is iron (iii) carbonate soluble? Molecular formula：c3fe2o9 compound is canonicalized：true Iron river november 18, 2004. The iron carbonate solutions offered at alibaba.com are versatile and keep their molecular combination intact for longer periods of. S...