Tellurous acid facts for kids
"Tellurium acid" redirects here. For the acid made of tellurate ions, see Telluric acid. For the acid made of telluride ions, see Hydrogen telluride.
Quick facts for kids Tellurous acid |
|
|---|---|
 |
|
| IUPAC name | Tellurous acid |
| Other names | Tellurium dioxide hydrate, tellurium(IV) oxide hydrate |
| Identifiers | |
| CAS number | |
| PubChem | |
| ChEBI | CHEBI:30465 |
| SMILES | O=[Te](O)O |
|
InChI
InChI=1/H2O3Te/c1-4(2)3/h(H2,1,2,3)
|
|
| Properties | |
| Molecular formula | H2TeO3 |
| Molar mass | 177.616 grams |
| Appearance | colorless crystals |
| Density | ~ 3 g/cm3 |
| Boiling point |
decomp. |
| Solubility in water | negligible |
| Acidity (pKa) | pKa(1) = 2.48, pKa(2) = 7.70 |
| Structure | |
| Crystal structure | unknown |
| Molecular shape | pyramidal at Te |
| Related compounds | |
| Other anions | Selenous acid Sulfurous acid |
| Other cations | Sodium tellurite |
| Related compounds | Telluric acid Selenic acid Sulfuric acid |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
Tellurous acid is a chemical compound. It is also an acid. Its chemical formula is H2TeO3. It contains hydrogen and tellurite ions. It can be made by reacting tellurium dioxide with water. It is not made as easily as telluric acid.
It is a weak oxidizing agent and a weak reducing agent. It easily turns back into tellurium dioxide and water. It is a weak acid. It reacts with bases to make tellurites.
Related pages
See also
In Spanish: Ácido teluroso para niños
All content from Kiddle encyclopedia articles (including the article images and facts) can be freely used under Attribution-ShareAlike license, unless stated otherwise. Cite this article:
Tellurous acid Facts for Kids. Kiddle Encyclopedia.