Selenic acid
Like sulfuric acid, selenic acid is a strong acid that is hygroscopic and extremely soluble in water. Concentrated solutions ... Instead, selenic acid may also be prepared by the oxidation of selenous acid (H2SeO3) with halogens, such as chlorine or ... The monohydrate melts at 26 °C, and the dihydrate melts at −51.7 °C. Selenic acid is a stronger oxidizer than sulfuric acid, ... Treatment with fluorosulfuric acid gives selenoyl fluoride: H2SeO4 + 2 HSO3F → SeO2F2 + 2 H2SO4 Hot, concentrated selenic acid ...
Iron(II) selenate
Selenic Acid and Iron. - Reduction of Selenic Acid by Nascent Hydrogen and Hydrogen Sulphide. - Preparation of Ferrous Selenate ... Na2SeO4 (sat.) + FeSO4 → Na2SO4 + FeSeO4 The reaction of iron and selenic acid produces iron(II) selenate as well, but with a ...
Selenous acid
... the other being selenic acid. Selenous acid is analogous to sulfurous acid, but it is more readily isolated. Selenous acid is ... Selenious acid is a key component of the Mecke reagent used for drug checking. Selenous acid can supply the trace element ... Selenous acid (or selenious acid) is the chemical compound with the formula H2SeO3. Structurally, it is more accurately ... The so-called cold-bluing process uses selenous acid, copper(II) nitrate, and nitric acid to change the color of the steel from ...
Selenium compounds
ISBN 978-0-471-07715-2. The report describes the synthesis of selenic acid. Lenher, V. (April 1902). "Action of selenic acid on ... Selenous acid can also be made directly by oxidizing elemental selenium with nitric acid: 3 Se + 4 HNO 3 + H 2 O ⟶ 3 H 2 SeO 3 ... Selenium trioxide may be synthesized by dehydrating selenic acid, H2SeO4, which is itself produced by the oxidation of selenium ... concentrated selenic acid can react with gold to form gold(III) selenate. Iodides of selenium are not well known. The only ...
Selenic
Look up selenic in Wiktionary, the free dictionary. Selenic may refer to: Selenic acid relative to The Moon This disambiguation ... page lists articles associated with the title Selenic. If an internal link led you here, you may wish to change the link to ...
Riley oxidation
Selenic acid is liberated in the final step to give the 1,2-dicarbonyl product. Allylic oxidation using selenium-dioxide ...
Chalcogen
... including sulfuric acid, sulfurous acid, selenic acid, and telluric acid. All hydrogen chalcogenides are toxic except for water ... 60% of all sulfuric acid produced is used to generate phosphoric acid. Sulfur is used as a pesticide (specifically as an ... and their corresponding acids, such as sulfuric acid. Oxygen is the most electronegative element except for fluorine, and forms ... Some amino acids, such as cysteine and methionine contain sulfur. Plant roots take up sulfate ions from the soil and reduce it ...
Selenoyl fluoride
... can be formed by the action of warm fluorosulfonic acid on barium selenate or selenic acid. SeO3 + SeF4 can ...
Potassium selenate
... , K 2SeO 4, is an odorless, white solid that forms as the potassium salt of selenic acid. Potassium selenate ... SeO3 + 2 KOH → K2SeO4 + H2O Alternatively, it can be made by treating selenous acid with potassium hydroxide, followed by ...
Ammonium selenide
... reacts with water and various acids. For example, it reacts with nitric acid to form selenic acid: (NH4)2Se ... selenide and hydrochloric acid). However, there is no X-ray crystallography on this compound. ...
Selenate
It corresponds to the selenic acid, H2SeO4, which is a strong acid and can in its concentrated form dissolve gold. The element ...
Praseodymium(III) selenate
... is an inorganic compound, the salt of praseodymium and selenic acid with the chemical formula Pr2( ... Praseodymium(III) selenate can be obtained by dissolving praseodymium(III) oxide in a solution of selenic acid: Pr2O3 + 3 ...
Gold compounds
It does react with selenic acid, and is dissolved by aqua regia, a 1:3 mixture of nitric acid and hydrochloric acid. Nitric ... However, the ions are removed from the equilibrium by hydrochloric acid, forming AuCl−4 ions, or chloroauric acid, thereby ... acid oxidizes the metal to +3 ions, but only in minute amounts, typically undetectable in the pure acid because of the chemical ... Gold is unaffected by most acids. It does not react with hydrofluoric, hydrochloric, hydrobromic, hydriodic, sulfuric, or ...
Selenium trioxide
One method entails dehydration of anhydrous selenic acid with phosphorus pentoxide at 150-160 °C. Another method is the ... It is also an oxidizing agent and a Lewis acid. It is of academic interest as a precursor to Se(VI) compounds. Selenium ... is the conjugate base of the unknown orthoselenic acid (Se(OH)6). In the solid phase SeO3 consists of cyclic tetramers, with an ...
Joseph Howard Mathews
Mathews earned the B.S. in chemistry in 1903, writing a senior thesis on nitrosyl selenic acid, based on research under the ...
Selenium acid
... may refer to either of the following: Selenious acid, H2SeO3 Selenic acid, H2SeO4 Hydroselenic acid, H2Se This ... disambiguation page lists articles associated with the title Selenium acid. If an internal link led you here, you may wish to ...
Raluca Ripan
... selenic acid, and selenocyanates. One of her students at the University of Cluj was Ionel Haiduc (a future President of the ...
Selenium
... trioxide may be synthesized by dehydrating selenic acid, H2SeO4, which is itself produced by the oxidation of selenium ... Selenous acid can also be made directly by oxidizing elemental selenium with nitric acid: 3 Se + 4 HNO3 + H2O → 3 H2SeO3 + 4 NO ... concentrated selenic acid reacts with gold to form gold(III) selenate. Selenium reacts with fluorine to form selenium ... which is mixed with water and acidified to form selenous acid (oxidation step). Selenous acid is bubbled with sulfur dioxide ( ...
Eilhard Mitscherlich
He obtained selenic acid in 1827 and showed that its salts are isomorphous with the sulphates, while a few years later he ... Through his careful studies, he realized that the acid was not being consumed during the production of the ether, although the ... He investigated the relation of benzene to benzoic acid and to other derivatives. As related by Gustav Rose Mitscherlich turned ... In 1833-34, Mitscherlich investigated the synthesis of diethyl ether from ethanol and sulfuric acid. ...
Gold
It does react with selenic acid, and is dissolved by aqua regia, a 1:3 mixture of nitric acid and hydrochloric acid. Nitric ... Gold is resistant to most acids, though it does dissolve in aqua regia (a mixture of nitric acid and hydrochloric acid), ... However, the ions are removed from the equilibrium by hydrochloric acid, forming AuCl−4 ions, or chloroauric acid, thereby ... Gold chloride (chloroauric acid) solutions are used to make colloidal gold by reduction with citrate or ascorbate ions. Gold ...
List of inorganic compounds
3 Selenic acid - H2SeO4 Selenious acid - H2SeO3 Selenium dibromide - SeBr2 Selenium dioxide - SeO2 Selenium disulfide - SeS2 ... NH2OH Hypobromous acid - HBrO Hypochlorous acid - HClO Hypophosphorous acid - H3PO2 Metaphosphoric acid - HPO3 Protonated ... PH3 Phosphomolybdic acid - H3PMo12O40 Phosphoric acid - H3PO4 Phosphorous acid (Phosphoric(III) acid) - H3PO3 Phosphoroyl ... 3 Hexafluorosilicic acid - H2F6Si Hydrazine - N2H4 Hydrazoic acid - HN3 Hydroiodic acid - HI Hydrogen bromide - HBr Hydrogen ...