The most important oxidation states of iron are +2 and +3, though a number of +4 and +6 states are known. For the element iron the trends in the relative stabilities of oxidation states among elements of the first transition series are continued, except that there is no compound or ...
Cast iron, an alloy of iron that contains 2 to 4 percent carbon, along with varying amounts of silicon and manganese and traces of impurities such as sulfur and phosphorus. It is made by reducing iron ore in a blast furnace. The liquid iron is cast, or p
Iron (Fe) is an element. Iron (Fe) is a metallic element that is typically silvery-gray in color, with a lustrous shine in its pure form. It is solid at room temperature and has a metallic odor when heated. Iron is one of the most abundant elements in the Earth's crust and is kn...
Iron is a chemical element; it has symbol Fe (from Latin ferrum 'iron') and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, just ahead of oxygen (32.1% and 30.1%, ...
where \(\Delta H\) is the formation enthalpy per atom and H is the calculated enthalpy per chemical unit for each compound. For defective systems, the configurational entropy Sconf is estimated by the following formula: $${S}_{{conf}}=-{k}_{{{\rm{B}}}[m{{{\mathrm{ln}}}(m)+(...
Iron is an essential element for a wide variety of metabolic processes such as oxygen transport, cellular respiration, and redox reactions in numerous metabolic pathways. For this reason, iron homeostasis is tightly regulated on cellular and systemic levels to ensure a balance between uptake, transpor...
Hemin is a ferric compound acknowledged as a biologic iron source of high absorptivity and good effect for preventing and curing iron deficiency anemia in modern medicine. Hemin has no ferric smell. It does not stimulate stomach or intestines and has no toxicity or side effect. Even pregnant wom...
View compound properties... Iron: history Ironwasdiscoveredby known since ancient times in unknown at not known.Origin of name: from the Anglo-Saxon word "iron" or "iren" (the origin of the symbol Fe comes from the Latin word "ferrum" meaning "iron"). Possibly the word iron is derived...
containing therare-earth elementyttrium, has the formula Y3Fe5O12; it is used in microwave circuitry. The most familiar ferrite, known since biblical times, ismagnetite(lodestone, or ferrous ferrite), Fe(Fe2O4). Ferrites exhibit a form of magnetism calledferrimagnetism(q.v.), which is distin...
Iron is an essential nutrient element for growth and a cofactor for various enzymes and proteins involved in key biological processes in the bacteria, in particular cellular metabolism and energy generation8. In the natural environments, iron availability is very limited due to extremely low solubility...