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This is an accepted version of this page This is the latest accepted revision, reviewed on 31 December 2024. 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 ...
The Gmelin rare earths handbook lists 1522 °C and 1550 °C as two melting points given in the literature, the most recent reference [Handbook on the chemistry and physics of rare earths, vol.12 (1989)] is given with 1529 °C.
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.
Indium(III) iodide is a pale yellow, very hygroscopic monoclinic solid (space group P2 1 /c (space group no. 14), a = 9.837 Å, b = 6.102 Å, c = 12.195 Å, β = 107.69°), [3] which melts at 210 °C to form a dark brown liquid and is highly soluble in water.
white crystals (yellow colouration indicates the presence of iodine) Melting point: 94 °C (201 °F; 367 K) Hazards NFPA 704 (fire diamond) 3. 0. 1. Safety data sheet ...
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.
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.
Allergies to povidone-iodine or shellfish do not affect the risk of side effects more than other allergies. [6] Use in the later part of pregnancy may cause hypothyroidism in the baby. [7] Iohexol is an iodinated non-ionic radiocontrast agent. [4] It is in the low osmolar family. [8] Iohexol was approved for medical use in 1985. [9]