13451-18-8

Basic information

• Product Name: TELLURIUM TRIOXIDE
• Synonyms: TELLURIUM OXIDE;TELLURIUM TRIOXIDE;Tellurium(Ⅳ)oxide;Tellurium oxide (119TeO2);Tellurium(VI) oxide;Tellurium(VI) trioxide
• CAS NO: 13451-18-8
• Molecular Formula: O₃Te
• Molecular Weight: 175.6
• EINECS: 231-193-1
• Mol File: 13451-18-8.mol
• Article Data: 14

Chemical Properties

• Melting Point: 733°C
• Appearance: /yellow-orange crystals
• Density: 5.67
• CAS DataBase Reference: TELLURIUM TRIOXIDE(CAS DataBase Reference)
• NIST Chemistry Reference: TELLURIUM TRIOXIDE(13451-18-8)
• EPA Substance Registry System: TELLURIUM TRIOXIDE(13451-18-8)

Safety Data

• RIDADR: 1479
• HazardClass: 5.1
• PackingGroup: II
• Hazardous Substances Data: 13451-18-8(Hazardous Substances Data)

Usage

Chemical Properties

-60 mesh with 99.9% purity; two forms: yellowish orange α, and grayish β; αis a strong oxidant, e.g. reacting vigorously with Al, Sn, C, P and S [KIR83] [CER91]

InChI:InChI=1/OTe/c1-2

Synthetic route

tellurium(IV) oxide (7446-07-3) → tellurium oxide (13451-18-8)

Conditions	Yield
annealing at 250°C for 30 min;

tellurium(IV) oxide (7446-07-3) + sodium carbonate (497-19-8) → tellurium oxide (13451-18-8)

Conditions	Yield
In neat (no solvent) in presence of air;;	0%
In neat (no solvent) in presence of air;;
In neat (no solvent) in presence of air;;
In neat (no solvent) in presence of air;;	0%

tellurium + oxygen (80937-33-3) → tellurium(IV) oxide (7446-07-3) + tellurium monoxide (13451-17-7) + TeTeOO + (TeO2)2 (149081-89-0) + tellurium oxide (13451-18-8)

Conditions	Yield
In solid matrix other Radiation; laser ablation of Te using Nd:YAG laser in the presence of O2 in Ar matrix - other products TeOTe, cyclic-TeTeO and O3; identified by IR;

water (7732-18-5) + tellurium hexafluoride (7783-80-4) → tellurium oxide (13451-18-8)

Conditions	Yield
In water on storage TeF6 over water, evaporation of the soln. and heating residue;;

water (7732-18-5) + tellurium tetrachloride (10026-07-0) → tellurium(IV) oxide (7446-07-3) + tellurium oxide (13451-18-8)

Conditions	Yield
In water hydrolysis of TeCl4;; small amounts of TeO3;;
In water hydrolysis of TeCl4;; small amounts of TeO3;;

tellurium + diammonium hydrogenphosphate + borate (14213-97-9) → tellurium oxide (13451-18-8)

Conditions	Yield
In not given anodic oxidation in borate- and (NH4)2HPO4-soln.;; as film on the electrode obtained;;

boron tris{pentafluoro-oxotellurate(VI)} (40934-88-1) → F5Te(OTeF4)(n)OTeF5 + boron trifluoride (7637-07-2) + tellurium oxide (13451-18-8) + tellurium hexafluoride (7783-80-4)

Conditions	Yield
decompn. above 140°C;
decompn. above 140°C;

boron tris{pentafluoro-oxotellurate(VI)} (40934-88-1) → boron trifluoride (7637-07-2) + tellurium oxide (13451-18-8) + tellurium hexafluoride (7783-80-4)

Conditions	Yield
decompn. above 350°C;
decompn. above 350°C;

telluric acid (13520-55-3) → tellurium oxide (13451-18-8)

Conditions	Yield
In neat (no solvent) heating at 330 °C for several weeks;;
In neat (no solvent) heating at 330 °C for several weeks;;
With air at 399.84℃; for 12h;

allotelluric acid → tellurium oxide (13451-18-8)

Conditions	Yield
With air In neat (no solvent) on heating to 220-395°C in air;;

[Cu(ethylenediamine)2]3[TeW6O24]*6H2O → copper(II) tungstate + tungsten(VI) oxide + tellurium oxide (13451-18-8)

Conditions	Yield
In neat (no solvent, solid phase) Cu-complex heated at 30-500°C under N2 at 5°C/min;

[[Na4(H2O)14][Cu(glycine)]2][TeMo6O24] → copper(II) molybdate + tellurium oxide (13451-18-8) + molybdenum(VI) oxide

Conditions	Yield
In neat (no solvent, solid phase) Cu-complex heated at 30-500°C under N2 at 5°C/min;

telluric acid dihydrate → tellurium oxide (13451-18-8)

Conditions	Yield
at 400℃; for 12h;

tellurium oxide (13451-18-8) + cadmium (7440-43-9) → tellurium

Conditions	Yield
In not given slow formn. of Te on boiling;

tellurium oxide (13451-18-8) → tellurium(IV) oxide (7446-07-3)

Conditions	Yield
With sulfur reduction with S;;
In neat (no solvent) heating at 420°C;;
375°C;
In neat (no solvent) decomposition of TeO3 started at 350 °C, at 600 °C (in presence of Na2CO3 at 700 °C) total conversion;;	>99

tellurium oxide (13451-18-8) → tellurium

Conditions	Yield
With sodium dithionite In water quantitative reduction of TeO3 with aq. Na2S2O4;;	>99
With sodium dithionite In water quantitative reduction of TeO3 with an excess of Na2S2O4 in alkaline soln.;;	>99
With Na2S2O4 In water quantitative reduction of TeO3 with an excess of Na2S2O4 in alkaline soln.;;	>99
With Na2S2O4 In water quantitative reduction of TeO3 with aq. Na2S2O4;;	>99
With Na2S2O4 In water

tellurium oxide (13451-18-8) + lithium carbonate (554-13-2) → lithium metatellurate(VI)

Conditions	Yield
In neat (no solvent) stoichiometric amounts of LiCO3 and TeO3 were heated in O2 or air at 400 and 550 °C for 24h each;;

thallium(I) nitrate + antimony pentoxide + tellurium oxide (13451-18-8) → Tl(SbTe)O6

Conditions	Yield
In neat (no solvent, solid phase) temp. gradually raising (20°C to 700°C, 100 K every 4 h, ratio 1:1:1); X-ray diffraction;

ammonia (7664-41-7) + water (7732-18-5) + tellurium oxide (13451-18-8) + molybdenum(VI) oxide → 6NH4(1+)*3O(2-)*TeO3*6MoO3*7H2O=3(NH4)2O*TeO3*6MoO3*7H2O

Conditions	Yield
In water satn. of an aq. soln. of TeO3 and MoO3 (1:4) with NH3;; crystn.; washing with alc. and ether;;
In water satn. of an aq. soln. of TeO3 and MoO3 (1:4) with NH3;; crystn.; washing with alc. and ether;;

lithium peroxide + tellurium oxide (13451-18-8) + lithium oxide → Li6TeO6

Conditions	Yield
In neat (no solvent) heating (700-800°C, closed Au- or Ag-tubes);

tellurium(IV) oxide (7446-07-3) + terbium(III, IV) oxide + tellurium oxide (13451-18-8) → Tb2Te4O11

Conditions	Yield
With CsCl In neat (no solvent, solid phase) mixt. of lanthanide oxide, TeO2 and TeO3 in molar ratio 1:7:1 and fiveteenfold excess of CsCl (flux) heated in evacuated quartz ampoule at 750°C for 5 h; cooled to 500°C and held at this temp. for 4 d then tempered at 750°C for 4 d;

chromium(VI) oxide + potassium dichromate + tellurium oxide (13451-18-8) → 2K2O*TeO3*4CrO3

Conditions	Yield
In water cooling or evapn. of aq. K2Cr2O7/TeO3/CrO3 soln. (mole ratio 1:1:2); crystn.;;
In water cooling or evapn. of aq. K2Cr2O7/TeO3/CrO3 soln. (mole ratio 1:1:2); crystn.;;

iodine pentoxide + tellurium oxide (13451-18-8) + potassium hydroxide → potassium iodic acid tellurate*6H2O

Conditions	Yield
With H2O In not given

tellurium oxide (13451-18-8) + potassium hydroxide → potassium fluorotellurate

Conditions	Yield
With hydrogen fluoride In water molar ratio TeO2:KOH=1:2 ; evaporating, mixed with 40% HF, cooling;
With HF In water molar ratio TeO2:KOH=1:2 ; evaporating, mixed with 40% HF, cooling;

caesium nitrate + antimony pentoxide + tellurium oxide (13451-18-8) → Cs(SbTe)O6

Conditions	Yield
In neat (no solvent, solid phase) temp. gradually raising (20°C to 700°C, 100 K every 4 h, ratio 1:1:1); X-ray diffraction;

antimony pentoxide + tellurium oxide (13451-18-8) → K(SbTe)O6

Conditions	Yield
With KNO3 In neat (no solvent, solid phase) temp. gradually raising (20°C to 700°C, 100 K every 4 h, ratio 1:1:1); X-ray diffraction;

rubidium nitrate (13126-12-0) + antimony pentoxide + tellurium oxide (13451-18-8) → Rb(SbTe)O6

Conditions	Yield
In neat (no solvent, solid phase) temp. gradually raising (20°C to 700°C, 100 K every 4 h, ratio 1:1:1); X-ray diffraction;

tellurium oxide (13451-18-8) + lithium oxide → Li6TeO6

Conditions	Yield
In neat (no solvent) heating (700-800°C, closed Au- or Ag-tubes);

tellurium oxide (13451-18-8) + potassium oxide + lithium oxide → Li6TeO6

Conditions	Yield
In neat (no solvent) tempering (ratio K:Li:Te 1:6:1, 740°C, 30 d, Ag-tube);

Upstream product

• 40934-88-1 boron tris{pentafluoro-oxotellurate(VI)} 
• 13520-55-3 telluric acid 
• 13451-14-4 telluric acid dihydrate 
• 7803-68-1 orthotelluric acid 
• 7446-07-3 tellurium(IV) oxide 
• 497-19-8 sodium carbonate 
• 7803-68-1 telluric acid 
• 7803-68-1 orthotelluric acid 
• 14683-12-6 tellurium 
• 14213-97-9 borate 
• 7732-18-5 water 
• 10026-07-0 tellurium tetrachloride 
• 7783-80-4 tellurium hexafluoride 

Downstream Products

• 7803-68-1 orthotelluric acid 
• 7803-68-1 orhtotelluric acid 
• 7446-07-3 tellurium(IV) oxide 
• 10026-07-0 tellurium tetrachloride 
• 14683-12-6 tellurium 
• 13494-80-9 hydrogen telluride 
• 7446-07-3 tellurium dioxide 

Relevant articles and documents

PbMn(IV)TeO6: A New Noncentrosymmetric Layered Honeycomb Magnetic Oxide

PbMnTeO6, a new noncentrosymmetric layered magnetic oxide was synthesized and characterized. The crystal structure is hexagonal, with space group P62m (No. 189), and consists of edge-sharing (Mn4+/Te6+)O6 trigon

Robust 1D open rack-like architecture in coordination polymers of Anderson POMs [{Na4(H2O)14}{Cu(gly)}2] [TeMo6O24] and [{Cu(en)2}3{TeW 6O24}]: S

Two novel organic-inorganic hybrid tungsto- and molybdo- telurates having formula [{Na4(H2O)14}{Cu(gly)} 2][TeMo6O24] (1){gly = glycine} and [{Cu(en)2}3{TeW6/sub

FORMATION, TRANSFORMATION, AND DECOMPOSITION OF Y2 TeO6.

A new metastable modification of Y//2TeO//6 was found to form while heating in air an amorphous material prepared by the simultaneous hydrolysis of yttrium and tellurium alkoxides. 7 Refs.

COMPOUND FORMATION IN THE MERCURY-CADMIUM-TELLURIUM-OXYGEN SYSTEM.

Samples of this system were prepared by solid-state reaction of mixtures of the binary oxide components. Specific phases were identified and characterized by x-ray and microprobe techniques. For some of these compounds small single crystals could be prepared for which structural data are reported. Three groups of phases could be distinguished, most of them being of low symmetry, with Te in plus 4, plus 6, and in mixed oxidation states. The monotellurites HgTeO//3 and CdTeO//3 are structurally different and exhibit a large miscibility gap, whereas for the ditellurites complete solid solution between CdTe//2O//5 and HgTe//2O//5 was found. As to the tellurates, phases with the compositions MTeO//4 and M//3Te//2O//9 (M equals Hg, Cd) has been prepared. The Cd//3Te//2O//9-structure is stabilized by 30 mole% Hg. Another tellurate, monoclinic Hg//2TeO//4, was found to be isomorphous to the respective selenate and sulfate and is identical with the mineral magnolite.

Preparation, thermal behaviour and crystal structure of the basic mercury(II) tetraoxotellurate(VI), Hg2TeO5, and redetermination of the crystal structure of mercury(II) orthotellurate(VI), Hg3TeO6

Single crystals of Hg2TeO5 were obtained as dark-red parallelepipeds by reacting stoichiometric amounts of Hg(NO3)2 · H2O and H6TeO6 under hydrothermal conditions (250°C, 10d). The crystal structure (space group Pna21, Z = 4, a = 7.3462(16), b = 5.8635(12), c = 9.969(2) A, 1261 structure factors, 50 parameters, R[F2 > 2σ(F2)] = 0.0295) is characterized by corner-sharing [TeO6] octahedra forming isolated chains ∞1[TeO4/1O2/2] which extend parallel to [100]. The two crystallographically independent Hg atoms are located in-between the chains and interconnect the chains via common oxygen atoms. Amber coloured single crystals of Hg3TeO6 were prepared by heating a mixture of Hg, HgO and TeO3 together with small amounts of HgCl2 as mineralizer in an evacuated and sealed silica glass tube (520°C). The previously reported crystal structure has been re-investigated by means of single crystal X-ray data which reveal a symmetry reduction from Ia3d to Ia3 (Z = 16, a = 13.3808(6) A, 609 structure factors, 33 parameters, R[F2 > 2σ(F2)] = 0.0221). The crystal structure is made up of a body-centred packing of [TeO6] octahedra with the Hg atoms situated in the interstices of this arrangement. Upon heating, both title compounds decompose in a one-step mechanism under formation of TeO2 and loss of the appropriate amounts of elementary mercury and oxygen.

Reactions of laser-ablated tellurium atoms with oxygen molecules: Matrix isolation infrared and DFT studies

Laser ablation of tellurium was carried out using the second harmonic Nd:YAG laser in the presence of oxygen molecules in argon/nitrogen matrices. The major species obtained in the Ar matrix were Te2O2, TeO2, Te2/sub