Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Chemical compound
Hydrogen iodide (HI) is a diatomic molecule and hydrogen halide. Aqueous solutions of HI are known as hydroiodic acid or hydriodic acid, a strong acid. Hydrogen iodide and hydroiodic acid are, however, different in that the former is a gas under standard conditions, whereas the other is an aqueous solution of the gas. They are interconvertible. HI is used in organic and inorganic synthesis as one of the primary sources of iodine and as a reducing agent.
^Bell, R.P. The Proton in Chemistry. 2nd ed., Cornell University Press, Ithaca, NY, 1973.
^Trummal, A.; Lipping, L.; Kaljurand, I.; Koppel, I. A.; Leito, I. "Acidity of Strong Acids in Water and Dimethyl Sulfoxide" J. Phys. Chem. A. 2016, 120, 3663-3669. doi:10.1021/acs.jpca.6b02253
^Raamat, E.; Kaupmees, K.; Ovsjannikov, G.; Trummal, A.; Kütt, A.; Saame, J.; Koppel, I.; Kaljurand, I.; Lipping, L.; Rodima, T.; Pihl, V.; Koppel, I. A.; Leito, I. "Acidities of strong neutral Brønsted acids in different media." J. Phys. Org. Chem. 2013, 26, 162-170. doi:10.1002/poc.2946
^ abCRC handbook of chemistry and physics: a ready-reference book of chemical and physical data. William M. Haynes, David R. Lide, Thomas J. Bruno (2016-2017, 97th ed.). Boca Raton, Florida. 2016. ISBN 978-1-4987-5428-6. OCLC 930681942.{{cite book}}: CS1 maint: location missing publisher (link) CS1 maint: others (link)
Hydrogeniodide (HI) is a diatomic molecule and hydrogen halide. Aqueous solutions of HI are known as hydroiodic acid or hydriodic acid, a strong acid...
smallest of the hydrogen halides, at 295 kJ/mol. Aqueous hydrogeniodide is known as hydroiodic acid, which is a strong acid. Hydrogeniodide is exceptionally...
smallest of the hydrogen halides, at 295 kJ/mol. Aqueous hydrogeniodide is known as hydroiodic acid, which is a strong acid. Hydrogeniodide is exceptionally...
An iodide ion is the ion I−. Compounds with iodine in formal oxidation state −1 are called iodides. In everyday life, iodide is most commonly encountered...
salt of magnesium and hydrogeniodide. These salts are typical ionic halides, being highly soluble in water. Magnesium iodide has few commercial uses...
from a reaction between metallic aluminum or aluminum hydroxide with hydrogeniodide or hydroiodic acid. Like the related chloride and bromide, AlI 3 is...
United States of America Hotel Indonesia, a hotel in Jakarta, Indonesia Hydrogeniodide, in chemistry, a diatomic molecule Health informatics, a discipline...
Iodomethane can also be prepared by the reaction of methanol with aqueous hydrogeniodide: CH3OH + HI → CH3I + H2O The generated iodomethane can be distilled...
Hydroiodic acid (or hydriodic acid) is a colorless and aqueous solution of hydrogeniodide (HI). It is a strong acid, which is ionized completely in an aqueous...
phosphorous acid, regenerating hydrogeniodide). Because hydrogeniodide exists in a chemical equilibrium with iodine and hydrogen, the phosphorus reaction...
hydrogen known as the hydrogen halides: hydrogen fluoride (HF), hydrogen chloride (HCl), hydrogen bromide (HBr), hydrogeniodide (HI), and hydrogen astatide...
Because iodide is a good leaving group, ethyl iodide is an excellent ethylating agent. It is also used as the hydrogen radical promoter. Ethyl iodide is prepared...
beta-proton is allowed to react with hydrogeniodide to the quaternary ammonium salt which when heated degrades to methyl iodide and the secondary amine. Cope...
The compound hydrogen chloride has the chemical formula HCl and as such is a hydrogen halide. At room temperature, it is a colorless gas, which forms white...
Hydrogen bromide is the inorganic compound with the formula HBr. It is a hydrogen halide consisting of hydrogen and bromine. A colorless gas, it dissolves...
Hydrogen fluoride (fluorane) is an inorganic compound with chemical formula HF. It is a very poisonous, colorless gas or liquid that dissolves in water...
peroxidase or iodide peroxidase, is an enzyme expressed mainly in the thyroid where it is secreted into colloid. Thyroid peroxidase oxidizes iodide ions to...
Beryllium iodide is also formed when beryllium carbide reacts with hydrogeniodide in the gas phase: Be2C + 4 HI → 2 BeI2 + CH4 Beryllium iodide reacts with...
(AsH+ 4Br− ) and arsonium iodide (AsH+ 4I− ), which can be synthesized by reacting arsine with hydrogen bromide or hydrogeniodide. Or more commonly, as organic...
for most organic compounds are hypothetical. For instance, carbon and hydrogen will not directly react to form methane (CH4), so that the standard enthalpy...
to the formation of iodine. Isopropyl iodide is prepared by iodination of isopropyl alcohol using hydrogeniodide or, equivalently, with a mixture of glycerol...
acetic acid and hydrogeniodide in a test tube. The ensuing reaction results in the cleavage of the ether or the ester into an alkyl iodide and respectively...
sulfuric acid and hydrogeniodide: 2H2O + SO2 + I2 → H2SO4 + 2HI This reaction is the first step in the sulfur-iodine cycle to produce hydrogen. The products...
Methylammonium iodide in an organic halide with a formula of CH3NH3I. It is an ammonium salt composed of methylamine and hydrogeniodide. The primary application...
iodide. A slightly milder set of conditions uses cyclohexyl iodide (CyI, 10.0 equiv) in N,N-dimethylformamide to generate a small amount of hydrogen iodide...
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