Telluric acid

Names
IUPAC name Hexahydroxidotellurium
Other names Orthotelluric acid
Identifiers
CAS Number	7803-68-1 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:30463 Y
ChemSpider	55517 Y
ECHA InfoCard	100.029.334
PubChem CID	61609
CompTox Dashboard (EPA)	DTXSID5064887
SMILES O[Te](O)(O)(O)(O)O
Properties
Chemical formula	H6O6Te
Molar mass	229.64 g/mol
Appearance	White monoclinic crystals
Density	3.07 g/cm3
Melting point	136°C (409.15 K)
Solubility in water	50.1 g/100 ml at 30°C[1]
Acidity (pKa)	7.68, 11.0 at 18°C[1]
Structure
Molecular shape	octahedral
Dipole moment	0 D
Hazards
Main hazards	corrosive
Related compounds
Other anions	{{{value}}}
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Telluric acid is a chemical compound. It is an acid. Its chemical formula is H₆TeO₆. It contains hydrogen and tellurate ions. It contains the TeO₆^6- form of the tellurate ion.

Telluric acid is a weak acid. It reacts with strong bases to make tellurates. It is a powerful oxidizing agents. It can be dehydrated to make tellurium trioxide. The metatelluric acid, H₂TeO₄, does not exist.

Telluric acid can be made by reacting tellurium dioxide with chromium trioxide or hydrogen peroxide.

It is used to make other tellurates such as sodium tellurate.

• Tellurous acid
• Sodium tellurite

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