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Telluric acid information


Telluric acid
Skeletal formula of ortho-telluric acid
Ball-and-stick model of ortho-telluric acid
Names
IUPAC name
Hexahydroxidotellurium
Other names
  • Orthotelluric acid
  • Hexahydroxytellurium
  • Hexahydroxy-λ6-tellane
  • Tellurium hexahydroxide
  • Tellurium(VI) hydroxide
Identifiers
CAS Number
  • 7803-68-1 checkY
3D model (JSmol)
  • Interactive image
ChEBI
  • CHEBI:30463 checkY
ChemSpider
  • 55517 checkY
ECHA InfoCard 100.029.334 Edit this at Wikidata
PubChem CID
  • 62686
UNII
  • WE1KZR49WU checkY
CompTox Dashboard (EPA)
  • DTXSID5064887 Edit this at Wikidata
InChI
  • InChI=1S/H2O4Te/c1-5(2,3)4/h(H2,1,2,3,4) checkY
    Key: XHGGEBRKUWZHEK-UHFFFAOYSA-N checkY
  • InChI=1/H2O4Te/c1-5(2,3)4/h(H2,1,2,3,4)
    Key: XHGGEBRKUWZHEK-UHFFFAOYAT
SMILES
  • O[Te](O)(O)(O)(O)O
Properties
Chemical formula
Te(OH)6
Molar mass 229.64 g·mol−1
Appearance White monoclinic crystals
Density 3.07 g/cm3
Melting point 136 °C (277 °F; 409 K)
Solubility in water
50.1 g/(100 ml) at 30 °C[1]
Acidity (pKa) 7.5, 11, 14[2]
Conjugate base Tellurate
Structure
Molecular shape
octahedral
Dipole moment
0 D
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
corrosive
Related compounds
Other anions
Hydrotelluric acid
Tellurous acid
Hydrogen telluride
Related compounds
Teflic acid
Sulfuric acid
Selenic acid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)
Infobox references

Telluric acid, or more accurately orthotelluric acid, is a chemical compound with the formula Te(OH)6, often written as H6TeO6. It is a white crystalline solid made up of octahedral Te(OH)6 molecules which persist in aqueous solution.[3] In the solid state, there are two forms, rhombohedral and monoclinic, and both contain octahedral Te(OH)6 molecules,[4] containing one hexavalent tellurium (Te) atom in the +6 oxidation state, attached to six hydroxyl (–OH) groups, thus, it can be called tellurium(VI) hydroxide. Telluric acid is a weak acid which is dibasic, forming tellurate salts with strong bases and hydrogen tellurate salts with weaker bases or upon hydrolysis of tellurates in water.[4][5] It is used as tellurium-source in the synthesis of oxidation catalysts.

  1. ^ Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, Florida: CRC Press, ISBN 0-8493-0594-2
  2. ^ Perrin, D. D., ed. (1982) [1969]. Ionisation Constants of Inorganic Acids and Bases in Aqueous Solution. IUPAC Chemical Data (2nd ed.). Oxford: Pergamon (published 1984). Entry 219. ISBN 0-08-029214-3. LCCN 82-16524.
  3. ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.
  4. ^ a b Cotton, F. Albert; Wilkinson, Geoffrey; Murillo, Carlos A.; Bochmann, Manfred (1999), Advanced Inorganic Chemistry (6th ed.), New York: Wiley-Interscience, ISBN 0-471-19957-5
  5. ^ Holleman, A. F.; Wiberg, E. "Inorganic Chemistry" Academic Press: San Diego, 2001. ISBN 0-12-352651-5.

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Telluric acid

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Telluric acid, or more accurately orthotelluric acid, is a chemical compound with the formula Te(OH)6, often written as H6TeO6. It is a white crystalline...

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Periodic acid

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a similar structure: Perchloric acid, perbromic acid, the related perhalogenic acids Telluric acid and perxenic acid, the isoelectronic oxoacids of tellurium...

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Orthocarbonic acid

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Orthocarbonic acid, carbon hydroxide, methanetetrol is the name given to a hypothetical compound with the chemical formula H4CO4 or C(OH)4. Its molecular...

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Oxyacid

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An oxyacid, oxoacid, or ternary acid is an acid that contains oxygen. Specifically, it is a compound that contains hydrogen, oxygen, and at least one...

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Hydroxide

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standard Brønsted–Lowry acid. Many oxoacids of sulfur are known and all feature OH groups that can dissociate. Telluric acid is often written with the...

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Hydrogen telluride

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H2Te is chemically and structurally similar to hydrogen selenide, both are acidic. The H–Te–H angle is about 90°. Volatile tellurium compounds often have...

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Selenic acid

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Selenic acid is the inorganic compound with the formula H2SeO4. It is an oxoacid of selenium, and its structure is more accurately described as O2Se(OH)2...

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Tellurium

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powder prepared by precipitating it from a solution of tellurous acid or telluric acid (Te(OH)6). Tellurium is a semiconductor that shows greater electrical...

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Tellurium dioxide

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solution it is in. It reacts with acids to make tellurium salts and bases to make tellurites. It can be oxidized to telluric acid or tellurates. Paratellurite...

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List of inorganic compounds

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telluride – Ag2Te Tin telluride – SnTe Zinc telluride – ZnTe Teflic acid – HOTeF5 Telluric acid – H6TeO6 Sodium tellurite – Na2TeO3 Tellurium dioxide – TeO2...

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Tellurous acid

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Tellurous acid is an inorganic compound with the formula H2TeO3. It is the oxoacid of tellurium(IV). This compound is not well characterized. An alternative...

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Chalcogen

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and +4. There are many acids containing chalcogens, including sulfuric acid, sulfurous acid, selenic acid, and telluric acid. All hydrogen chalcogenides...

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Tellurate

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from telluric acid Te(OH)6, and the name tellurite referred to oxyanions of tellurium with oxidation number +4, formally derived from tellurous acid (HO)2TeO...

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Teflic acid

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volatile telluric compounds, containing HOTeF5: BaTeO4 + 10 FSO2OH → HOTeF5 (25%) Teflic acid can also be prepared from fluorosulfonic acid and barium...

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Glossary of chemical formulae

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13968-08-6 H3PO2 hypophosphorous acid H3PO3 phosphorous acid H3PO4 phosphoric acid 7664-38-2 H4XeO6 perxenic acid H6TeO6 telluric acid 7803-68-1 HfBr4 hafnium(IV)...

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Sodium tellurite

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oxidizing agent and a weak reducing agent. H2TeO3 → H+ + HTeO3− pK 2.48 Telluric acid loses a proton at this pKa. HTeO3− → H+ + TeO32− pK 7.7 Hydrogen tellurite...

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Tellurium compounds

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of acids, including tellurous acid (H 2TeO 3), orthotelluric acid (Te(OH) 6) and metatelluric acid ((H 2TeO 4) n). The two forms of telluric acid form...

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Ultravisitor

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exhibited by Jenkinson on his previous albums, including drum and bass, acid techno, jazz fusion, and electronic noise. A few of the tracks feature layered...

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Tellurium tetraiodide

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TeI4 dissociates: TeI4 → TeI2 + I2 It can be also obtained by reacting telluric acid with hydrogen iodide. Te(OH)6 + HI → TeI4 + I2 + 6 H2O It can also be...

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Txakoli

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certain European products to recreate the daily life of their cultural and telluric origins.» In the town of Doñihue in the Cachapoal Valley, the "Fiesta del...

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Atmospheric science

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with the atmosphere, creating the ionosphere, Van Allen radiation belts, telluric currents, and radiant energy. Is a science that bases its more general...

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Earth

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/təˈriːn/, and from the Latin Tellus comes tellurian /tɛˈlʊəriən/ and telluric. The oldest material found in the Solar System is dated to 4.5682+0.0002...

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Nikola Tesla

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Steinmetz – American mathematician and electrical engineer (1865–1923) Telluric current – Natural electric current in the Earth's crust Nikola Tesla in...

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History of chemistry

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classification by Alexandre-Émile Béguyer de Chancourtois, who published the telluric helix, an early, three-dimensional version of the periodic table of the...

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Iron

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oxygen fugacity sufficiently for iron to crystallize. This is known as telluric iron and is described from a few localities, such as Disko Island in West...

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