Is hydrogen selenide an acid?
Is hydrogen selenide an acid?
Hydrogen selenide (H2Se) is a fairly strong acid with a pKa of 3.8 in aqueous systems. It is a colorless gas with an unpleasant odor. Hydrogen selenide can be produced by heating elemental selenium (Se0) to temperatures above 400 °C, but it decomposes in air to form the element and water.
Is hydrogen selenide an acid or base?
Hydrogen selenide is an inorganic compound with the formula H2Se. This hydrogen chalcogenide is the simplest and most commonly encountered hydride of selenium. H2Se is a colorless, flammable gas under standard conditions….Hydrogen selenide.
| Names | |
|---|---|
| Acidity (pKa) | 3.89 |
| Conjugate acid | Selenonium |
| Conjugate base | Selenide |
| Structure |
What is the chemical formula for hydrogen selenide?
H2Se
Hydrogen selenide/Formula
What is H2Se acid?
Hydrogen Selenide is a colorless, highly flammable, toxic gas with a strong unpleasant odor. 3. This substance is formed by reaction of acids or water with metal selenides and has no reported commercial applications.
Is hydrogen selenide a gas?
Hydrogen Selenide is a colorless gas with an odor like decayed horseradish. It is used in the manufacture of organoselenium compounds and in semiconductors.
What type of compound is P4O6?
Phosphorus trioxide is the chemical compound with the molecular formula P4O6. Although the molecular formula suggests the name tetraphosphorus hexoxide, the name phosphorus trioxide preceded the knowledge of the compound’s molecular structure, and its usage continues today.
Is hydrogen selenide soluble in water?
6.22 Hydrogen Selenide
| Chemical Name | Hydrogen selenide |
|---|---|
| Solubility in water (20°C, 1 atm) | 0.0853 gmole/l |
| Free energy of formation* | 15.9 kJ/gmole |
| DOT classification | 2.3 |
| DOT label | Poison gas, flammable gas |
What is H2Se called?
Hydrogen selenide | H2Se – PubChem.
Is H2Se a strong acid?
In binary acids such as H2S and H2Se, the H–Se bonds is longer than the H–S bonds as Se is larger than S. The H–Se bond is therefore weaker than the H–S bond and H2Se is thus a stronger acid than H2S.
What is the chemical name of H2Se?
| IUPAC Name | selane |
|---|---|
| Alternative Names | Dihydrogen selenide |
| Molecular Formula | H2Se |
| Molar Mass | 80.987 g/mol |
| InChI | InChI=1S/H2Se/h1H2 |
Is hydrogen sulfide a liquid?
Hydrogen sulfide appears as a colorless gas having a strong odor of rotten eggs. Boiling point -60.2°C. Shipped as a liquid confined under its own vapor pressure.
Hydrogen selenide. Hydrogen selenide, also known as hydroselenic acid, selenium hydride, or selane, is a chemical compound. Its chemical formula is H2Se. It is an acid.
What does hydrogen selenide smell like in water?
Properties [ change | change source] Hydrogen selenide is a colorless gas that dissolves in water to make an acidic solution. It smells like rotten horseradish. It is very toxic. It burns easily, making selenium dioxide. It is similar to hydrogen sulfide, a gas that smells like rotten eggs. It is a strong reducing agent .
Which is more toxic hydrogen sulfide or hydrogen selenide?
Hydrogen selenide is hazardous, being the most toxic selenium compound and far more toxic than its congener hydrogen sulfide. The threshold limit value is 0.05 ppm.
How is hydrogen selenide made in a hydrolysis reaction?
Hydrogen selenide can be made by hydrolysis of aluminium selenide. This reaction also makes aluminium hydroxide. It can be made by reacting hydrogen with powdered selenium at a high temperature.