Search results
Results from the WOW.Com Content Network
When metallic iron (oxidation state 0) is placed in a solution of hydrochloric acid, iron(II) chloride is formed, with release of hydrogen gas, by the reaction Fe 0 + 2 H + → Fe 2+ + H 2. Iron(II) is oxidized by hydrogen peroxide to iron(III), forming a hydroxyl radical and a hydroxide ion in the process. This is the Fenton reaction.
This reaction raises the temperature to about 2000 °C. The carbon monoxide reduces the iron ore to metallic iron: [119] Fe 2 O 3 + 3 CO → 2 Fe + 3 CO 2. Some iron in the high-temperature lower region of the furnace reacts directly with the coke: [119] 2 Fe 2 O 3 + 3 C → 4 Fe + 3 CO 2
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate
Iron shows the characteristic chemical properties of the transition metals, namely the ability to form variable oxidation states differing by steps of one and a very large coordination and organometallic chemistry: indeed, it was the discovery of an iron compound, ferrocene, that revolutionalized the latter field in the 1950s. [1]
Ferrocene is an organometallic compound with the formula Fe(C 5 H 5) 2.The molecule is a complex consisting of two cyclopentadienyl rings sandwiching a central iron atom. It is an orange solid with a camphor-like odor that sublimes above room temperature, and is soluble in most organic solvents.
A mnemonic is a memory aid used to improve long-term memory and make the process of consolidation easier. Many chemistry aspects, rules, names of compounds, sequences of elements, their reactivity, etc., can be easily and efficiently memorized with the help of mnemonics.
Iron powder. Iron powder has several uses; for example production of magnetic alloys and certain types of steels. [1] Iron powder is formed as a whole from several other iron particles. The particle sizes vary anywhere from 20-200 μm. The iron properties differ depending on the production method and history of a specific iron powder.
The surfaces of these metallic compounds provide a complex electron environment for catalyzing chemical reactions. [ 4 ] In steel metallurgy , nickel is alloyed with iron since 1888 (date of Schneider et Cie 's patent [ 5 ] on nickel steel based on Jean Werth's research [ 6 ] ) to produce maraging steel and some low-alloy steels .