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telluric acid (7803-68-1)

Identification
Name:telluric acid
Synonyms:orthotelluric acid
CAS:7803-68-1
EINECS: 232-267-6
Molecular Formula: H6O6Te
Molecular Weight: 229.641
InChI: InChI=1/H6O6Te/c1-7(2,3,4,5)6/h1-6H
Molecular Structure: (H6O6Te) orthotelluric acid
Properties
Transport:UN 3284 6.1/PG 3
Flash Point: °C
Boiling Point: °Cat760mmHg
Density:g/cm3
Specification:

 Telluric acid (CAS NO.7803-68-1) is also called Telluric(VI) acid ; CCRIS 9168 ; Orthotelluric acid ; Tellurate ; Tellurium hydroxide ; Telluric acid (H6TeO6) .The anhydrous acid of  Telluric acid (CAS NO.7803-68-1) is stable in air at 100 °C but above this it dehydrates to form polymetatelluric acid, a white hygroscopic powder (approximate composition (H2TeO4)10), and allotelluric acid, an acid syrup of unknown structure (approximate composition (H2TeO4)3(H2O)4). Strong heating at over 300 °C produces the α- crystalline modification of tellurium trioxide, α-TeO3.
Reaction with diazomethane gives the hexamethyl ester, Te(OMe)6. Telluric acid and its salts mostly contain hexacoordinate tellurium. This is true even for salts such as magnesium tellurate, MgTeO4, which is isostructural with magnesium molybdate and contains TeO6 octahedra.

Report:

Reported in EPA TSCA Inventory.

Packinggroup: II
Flash Point: °C
Safety Data
 

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