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Iron(II) iodide can be synthesised by the reaction of iron with iodine at 500 °C: [1] [3]. Fe + I 2 → FeI 2. This is in contrast to the other iron(II) halides, which are best prepared by reaction of heated iron with the appropriate hydrohalic acid.
This is an accepted version of this page This is the latest accepted revision, reviewed on 9 January 2025. This article is about the chemical element. For other uses, see Iodine (disambiguation). Chemical element with atomic number 53 (I) Iodine, 53 I Iodine Pronunciation / ˈ aɪ ə d aɪ n, - d ɪ n, - d iː n / (EYE -ə-dyne, -din, -deen) Appearance lustrous metallic gray solid, black ...
The melting point (or, rarely, liquefaction point) of a substance is the temperature at which it changes state from solid to liquid. At the melting point the solid and liquid phase exist in equilibrium. The melting point of a substance depends on pressure and is usually specified at a standard pressure such as 1 atmosphere or 100 kPa.
David R. Lide (ed), CRC Handbook of Chemistry and Physics, 85th Edition, online version. CRC Press. Boca Raton, Florida, 2003; Section 6, Fluid Properties; Critical Constants. Also agrees with Celsius values from Section 4: Properties of the Elements and Inorganic Compounds, Melting, Boiling, Triple, and Critical Point Temperatures of the Elements
Iron phosphide is a chemical compound of iron and phosphorus, with a formula of FeP.< [1] Its physical appearance is grey needles. Manufacturing of iron phosphide takes place at elevated temperatures, where the elements combine directly. [1] Iron phosphide reacts with moisture and acids producing phosphine (PH 3), a toxic and pyrophoric gas.
These iodine compounds are hypervalent because the iodine atom formally contains in its valence shell more than the 8 electrons required for the octet rule. Hypervalent iodine oxyanions are known for oxidation states +1, +3, +5, and +7; organic analogues of these moieties are known for each oxidation state except +7.
Printable version; In other projects ... Melting point: 202–206 °C (396–403 °F; ... NIS is the iodine analog of N-chlorosuccinimide ...
2 is nearly insoluble at room temperature, and thus precipitates out. [17] Other soluble compounds containing lead(II) and iodide can be used instead, for example lead(II) acetate [12] and sodium iodide. The compound can also be synthesized by reacting iodine vapor with molten lead between 500 and 700 °C. [18] A thin film of PbI