Search results
Results From The WOW.Com Content Network
Iron (II) carbonate, or ferrous carbonate, is a chemical compound with formula FeCO3, that occurs naturally as the mineral siderite. At ordinary ambient temperatures, it is a green-brown ionic solid consisting of iron (II) cations Fe2+ and carbonate anions CO2−3. [ 5 ]
Iron (II) acetate describes compounds with formula Fe (CH3CO2)2· (H2O)x where x can be 0 (anhydrous) or 4 (tetrahydrate). The anhydrous compound is a white solid, although impure samples can be slightly colored. [1] The tetrahydrate is light green solid that is highly soluble in water.
Iron forms various oxide and hydroxide compounds; the most common are iron (II,III) oxide (Fe 3 O 4), and iron (III) oxide (Fe 2 O 3). Iron (II) oxide also exists, though it is unstable at room temperature. Despite their names, they are actually all non-stoichiometric compounds whose compositions may vary. [ 13 ]
Iron (II) chloride tetrahydrate, FeCl2·4H2O. In chemistry, iron (II) refers to the element iron in its +2 oxidation state. The adjective ferrous or the prefix ferro- is often used to specify such compounds, as in ferrous chloride for iron (II) chloride (FeCl2). The adjective ferric is used instead for iron (III) salts, containing the cation Fe 3+.
Iron(III) oxide-hydroxide or ferric oxyhydroxide [2] is the chemical compound of iron, oxygen, and hydrogen with formula FeO(OH). The compound is often encountered as one of its hydrates, FeO(OH) ·n H 2 O [rust]. The monohydrate FeO(OH) · H 2 O is often referred to as iron(III) hydroxide Fe(OH) 3, [3] hydrated iron oxide, yellow iron oxide ...
Chart. The following chart shows the solubility of various ionic compounds in water at 1 atm pressure and room temperature (approx. 25 °C, 298.15 K). "Soluble" means the ionic compound doesn't precipitate, while "slightly soluble" and "insoluble" mean that a solid will precipitate; "slightly soluble" compounds like calcium sulfate may require ...
The Fe centres are equivalent, each being octahedral, being bound to six oxygen ligands, including a triply bridging oxide at the center of the equilateral triangle. [8] The compound was an early example of a molecular complex of iron that features an oxide ligand. The cation has idealized D 3h symmetry.
Calcium bicarbonate, also called calcium hydrogencarbonate, has the chemical formula Ca (HCO 3) 2. The term does not refer to a known solid compound; it exists only in aqueous solution containing calcium (Ca 2+), bicarbonate (HCO−. 3), and carbonate (CO2−. 3) ions, together with dissolved carbon dioxide (CO 2).