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Hydrogen selenide is an inorganic compound with the formula H 2 Se. This hydrogen chalcogenide is the simplest and most commonly encountered hydride of selenium. H 2 Se is a colorless, flammable gas under standard conditions. It is the most toxic selenium compound [3] with an exposure limit of 0.05 ppm over an 8-hour period.
Selenous acid is analogous to sulfurous acid, but it is more readily isolated. Selenous acid is easily formed upon the addition of selenium dioxide to water. As a crystalline solid, the compound can be seen as pyramidal molecules that are interconnected with hydrogen bonds. In solution it is a diprotic acid: [3] H 2 SeO 3 ⇌ H + + HSeO − 3 ...
Selenic acid is the inorganic compound with the formula H 2 SeO 4. It is an oxoacid of selenium , and its structure is more accurately described as O 2 Se(OH) 2 . It is a colorless compound.
Sample of cadmium selenide, a pigment. The parent inorganic selenide is hydrogen selenide (H 2 Se). It is a colorless, malodorous, toxic gas. It dissolves in aqueous solution, to give the hydrogenselenide or biselenide ion HSe −.
The most important series, including water, has the chemical formula H 2 X, with X representing any chalcogen. They are therefore triatomic. They take on a bent structure and as such are polar molecules. Water is an essential compound to life on Earth today, [2] covering 70.9% of the planet's surface. The other hydrogen chalcogenides are ...
Sodium hydroselenide is an inorganic compound with the chemical formula Na Se H. It is a salt of hydrogen selenide. It consist of sodium cations Na + and hydroselenide anions − SeH. Each unit consists of one sodium, one selenium, and one hydrogen atom. Sodium hydroselenide is a selenium analog of sodium hydroxide NaOH.
A seleninic acid is an organoselenium compound and an oxoacid with the general formula RSeO 2 H, where R ≠ H. Its structure is R−Se(=O)−OH . It is a member of the family of organoselenium oxoacids, which also includes selenenic acids and selenonic acids , which are R−Se−OH and R−Se(=O) 2 −OH , respectively.
Selenium acid may refer to either of the following: Selenious acid, H 2 SeO 3; Selenic acid, H 2 SeO 4; Hydroselenic acid, H 2 Se This page was last ...