Tellurium hexafluoride supplier

Name
TELLURIUM HEXAFLUORIDE
EINECS 232-027-0
CAS No. 7783-80-4
Article Data30
CAS DataBase
Density (solid; -191°) 4.006; d (liq; -10°) 2.499
Solubility slowly mixes with H2O, hydrolyzing to telluric acid [MER06]
Melting Point -37
Formula TeF₆
Boiling Point -38,9°C
Molecular Weight 241.59
Flash Point
Transport Information
Appearance
Safety 3/7-9-36/37/39-45
Risk Codes 20-31-34
Molecular Structure
Hazard Symbols T
Synonyms Telluriumfluoride (TeF6) (6CI,7CI,8CI);Hexafluorotellurium;Tellurium hexafluoride;hexafluoro-λ⁶-tellane;
PSA 0.00000
LogP 2.14040

Synthetic route

: 19610-51-6
K(1+)*TeF5O(1-)=KTeF5O

: 7782-41-4
fluorine

A: 83314-21-0
TeF5OF

B: 7783-80-4
tellurium hexafluoride

Conditions

Conditions	Yield
In neat (no solvent) KTeF5O was treated with F2 (molar ratio 1:3.11) for 6 wk at -45°C;	A 0% B 80%
In neat (no solvent) KTeF5O was treated with F2 (molar ratio 1:3.11) for 8 d at -45°C;	A 0% B 26%

...Expand

: tellurium

: 7446-07-3
tellurium(IV) oxide

: 7782-41-4
fluorine

A: ditellurium decafluoride

B: Te3F14O2

C: 7783-80-4
tellurium hexafluoride

Conditions

Conditions	Yield
In neat (no solvent) a mixture of TeO2:Te=1:1 was treated with F2 (4 l/h) dild. with N2 (10 l/h) at a furnace temp. of 50-60°C;;	A 25% B 2% C 73%
In neat (no solvent) a mixture of TeO2:Te=1:1 was treated with F2 (4 l/h) dild. with O2 (10 l/h) at a furnace temp. of 50-60°C; the yield of Te2F10 is almost 50%;;

...Expand

: 13536-85-1
fluorosulfuryl hypofluorite

: cesium pentafluoroorthotellurate

A: 57458-27-2
teflic acid

B: 83314-21-0
TeF5OF

C: 7783-80-4
tellurium hexafluoride

Conditions

Conditions	Yield
In neat (no solvent) byproducts: CsSO3F; CsTeF5O was evacuated and cooled to -196°C, FOSO2F (molar ratio 1.22:1) was added from vac. line, closed, warmed slowly to -78°C in liq. N2-CO2 slush bath, kept at -45°C for 9 d, cooled to -196°C; pumped off, sepd. by fractional condensation in traps (-78, -126 and -196°C);	A n/a B 68% C n/a

...Expand

: 56395-49-4
titanium(IV) tetrakis(pentafluoroorthotellurate)

A: 13537-16-1
titanium oxyfluoride

B: 20533-01-1
F5TeOTeF5

C: 63569-53-9, 63598-94-7, 84823-51-8
F5Te(OTeF4)OTeF5

D: 7783-80-4
tellurium hexafluoride

Conditions

Conditions	Yield
heated at 250°C for 15 h in autoclave;	A 19% B 26% C 51% D 3.9%

...Expand

: cesium pentafluoroorthotellurate

: 7782-41-4
fluorine

A: 83314-21-0
TeF5OF

B: 7783-80-4
tellurium hexafluoride

Conditions

Conditions	Yield
In neat (no solvent) CsTeF5O was treated with F2 (molar ratio 1:3.11) for 2 wk at -10°C;	A 0% B 48%
In neat (no solvent) CsTeF5O was treated with F2 (molar ratio 1:3.11) for 8 d at -45°C;	A 0% B 26%

...Expand

: 7446-07-3
tellurium(IV) oxide

: 7637-07-2
boron trifluoride

A: ditellurium decafluoride

B: Te3F14O2

C: 7783-80-4
tellurium hexafluoride

D: 15192-26-4
tellurium(IV) fluoride

Conditions

Conditions	Yield
In neat (no solvent) TeO2 was treated with a continous stream of BF3 with He as carrier gas at 100-450°C;;
In neat (no solvent) TeO2 was treated with a continous stream of BF3 with He as carrier gas at 100-450°C;;

...Expand

: 7446-07-3
tellurium(IV) oxide

: 7782-41-4
fluorine

: 7783-80-4
tellurium hexafluoride

Conditions

Conditions	Yield
In neat (no solvent) TeO2 was treated with F2 (0.5-10 l/h) dild. with N2 (0-5 l/h) at a furnace temp. of 100-200°C;;

: tellurium

: 7782-41-4
fluorine

A: 7783-80-4
tellurium hexafluoride

B: 15192-26-4
tellurium(IV) fluoride

Conditions

Conditions	Yield
In neat (no solvent) distd. Te; with inflammation;;

...Expand

: tellurium

: 7782-41-4
fluorine

: 7783-80-4
tellurium hexafluoride

Conditions

Conditions	Yield
In neat (no solvent) product mixture of TeF6 and lower tellurium fluorides;;
In neat (no solvent) from F2 and Te in very dry glass apparatus; 10-15 hours; on cooling since begin of reaction no inflammation;;
In neat (no solvent) passing pure F2 (purified from HF by waterfree NaF in copper tube) over Te in copper tube (1.5l F2 / hour; no explosion);; condensation on cooling with carbon dioxide-alc.-freezing mixture in Pyrex glass vessel; fractionated sublimation in vac.;;

: tungsten ditelluride

: 7782-41-4
fluorine

A: 7783-80-4
tellurium hexafluoride

B: 7783-82-6
tungsten(VI) fluoride

C: 15192-26-4
tellurium(IV) fluoride

Conditions

Conditions	Yield
In neat (no solvent) WTe2 placed in a tungsten saucer, addn. of a small amt. of sulfur as fuse, react. with fluorine in a prefluorinated perforated nickel crucible;

...Expand

: 7782-41-4
fluorine

: 15192-26-4
tellurium(IV) fluoride

: 7783-80-4
tellurium hexafluoride

Conditions

Conditions	Yield
In neat (no solvent) 50 mol% excess of F2; 250°C; 4 h; condensation onto dry NaF at -196°C;

: rubidium pentafluorotellurate(IV)

: 80937-33-3
oxygen

A: dirubidium oxotetrafluorotellurate(IV)

B: 7783-80-4
tellurium hexafluoride

Conditions

Conditions	Yield
In neat (no solvent) thermal treatment of RbTeF5 in air, 450°C, 3h;

...Expand

: 21975-44-0
pentafluorotellurium chloride

: 13400-13-0
cesium fluoride

A: cesium pentafluorotellurate(IV)

B: 7783-80-4
tellurium hexafluoride

Conditions

Conditions	Yield
In neat (no solvent) byproducts: SiF4, ClF; TeClF5 (12.81 mmol) was allowed to react with CsF (3.40 mmol) at 90°C for 25 d;;
In neat (no solvent) byproducts: Cl2; TeClF5 (6.19 mmol) was allowed to react with CsF (3.82 mmol) at 55°C for 20 d in F.E.P react. vessel;;
In neat (no solvent) byproducts: SiF4, ClF, Cl2; TeClF5 (8.53 mmol) was condensed onto CsF (4.11 mmol) in a glass vessel and the mixt. stirred at room temp.; the react. was complete for 30 d;; TeF6, Cl2, TeFCl5 and SiF4 were removed leaving a solid; detected by IR-, Raman-, NMR-expt. and X-ray powder photography;;
In further solvent(s) byproducts: Cl2; TeClF5 (15.54 mmol) was allowed to react with CsF (3.33 mmol) at 80-90°C for 15 d in C6F6 soln.;;

...Expand

: 21975-44-0
pentafluorotellurium chloride

: potassium hydroxide

A: potassium pentafluorotellurate(IV)

B: 7783-80-4
tellurium hexafluoride

Conditions

Conditions	Yield
In neat (no solvent) byproducts: Cl2; TeFCl5 (5.22 mmol) was allowed to react with solid KOH (5.54 mmol) for 7 d;; detected by IR- and Raman expt.;

...Expand

: 40934-88-1
boron tris{pentafluoro-oxotellurate(VI)}

A: F5Te(OTeF4)(n)OTeF5

B: 7637-07-2
boron trifluoride

C: 13451-18-8
tellurium oxide

D: 7783-80-4
tellurium hexafluoride

Conditions

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

...Expand

: 40934-88-1
boron tris{pentafluoro-oxotellurate(VI)}

A: 7637-07-2
boron trifluoride

B: 13451-18-8
tellurium oxide

C: 7783-80-4
tellurium hexafluoride

Conditions

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

...Expand

: 40934-88-1
boron tris{pentafluoro-oxotellurate(VI)}

: 66270-54-0
FI(OTeF5)4

A: 66270-55-1
OI(OTeF5)3

B: 7783-80-4
tellurium hexafluoride

Conditions

Conditions	Yield
+80°C;
+80°C;

...Expand

: cesium pentafluorotellurate(IV)

A: 15321-03-6
Cs(1+)*ClF2(1-) = CsClF2

B: 21975-44-0
pentafluorotellurium chloride

C: 7783-80-4
tellurium hexafluoride

Conditions

Conditions	Yield
With chlorine monofluoride In solid byproducts: Cl2; High Pressure; ClF (7.52 mmol) was condensed onto CsTeF5 (5.85 mmol) in a Monel vessel and left at room temp. for 3 d;; detected by IR-, Raman, NMR-expt.;;	A n/a B <1 C n/a

...Expand

: 21975-44-0
pentafluorotellurium chloride

A: 7783-80-4
tellurium hexafluoride

B: 15192-26-4
tellurium(IV) fluoride

Conditions

Conditions	Yield
In neat (no solvent) High Pressure; heating at 250°C in a Monel vessel overnight;; detected by IR-expt.;

: 21975-44-0
pentafluorotellurium chloride

: 7783-80-4
tellurium hexafluoride

Conditions

Conditions	Yield
In neat (no solvent) byproducts: SiF4, Cl2; High Pressure; heating at 70°C for 20 d in a Monel Parr bomb, then reheating at 110°C for 2 mo; then the mixt. of products was heated at 180°C for 20 d;; detected by IR-expt.;	<1

: 21975-44-0
pentafluorotellurium chloride

: 7782-41-4
fluorine

: 7783-80-4
tellurium hexafluoride

Conditions

Conditions	Yield
In neat (no solvent) High Pressure; TeFCl5 (5.81 mmol) was allowed to react with F2 (23.2 mmol) for 3 d at 165°C in a Parr bomb;; detected by IR-, Raman and NMR-expt.;

: 21975-44-0
pentafluorotellurium chloride

: 124-40-3
dimethyl amine

A: TeF4*HN(CH3)2

B: 7783-80-4
tellurium hexafluoride

Conditions

Conditions	Yield
In neat (no solvent) byproducts: Cl2; TeClF5 (3.72 mmol) was allowed to react with HNMe2 (2.99 mmol);; detected by IR-expt.;	A n/a B <1

...Expand

: 57458-27-2
teflic acid

: NF4(1+)*HF2(1-)*99HF=NF4HF2*99HF

A: 83314-21-0
TeF5OF

B: 7783-80-4
tellurium hexafluoride

Conditions

Conditions	Yield
In neat (no solvent) byproducts: NF3, HF; TeF5OH was added to NF4NF2*99HF on vac. line at -196°C, warmed slowly to -23°C, kept for 8 h under dynamic vac.; volatiles sepd. by fractional condensation in traps (-95, -126, -142 and -210°C);	A 10-20 B <1

...Expand

: sulfur

: molybdenum ditelluride

: 7782-41-4
fluorine

: 7440-33-7
tungsten

A: 7783-77-9
molybdenum(VI) fluoride

B: 7783-80-4
tellurium hexafluoride

C: 7783-82-6
tungsten(VI) fluoride

D: 2551-62-4
sulfur(VI) hexafluoride

Conditions

Conditions	Yield
In neat (no solvent) Ensemble of MoTe2 on W-saucer with small quantities of S, resting on a perfluorinated Ni-crucible, is combusted with F2 in a calorimeter bomb.; Gases are condensed into a trap (liq. N2).;

...Expand

: 66255-64-9
Xe(OTeF5)4

: 7783-70-2
antimony pentafluoride

A: 20533-01-1
F5TeOTeF5

B: 142533-92-4
F2XeOTeF5(1+)

C: 142533-91-3
FXe(OTeF5)2(1+)

D: 142533-90-2
Xe(OTeF5)3(1+)

E: 7783-80-4
tellurium hexafluoride

Conditions

Conditions	Yield
In neat (no solvent) heat sealing of the NMR tube with Xe-compound; cooling to -196°C; addn. of SbF5 via syringe; removing tube from drybox while cold- and heat sealing under a dynamic vac. at -196°C; not isolated; detection of compounds at 5°C by NMR;

...Expand

: 68854-32-0
OXe(OTeF5)4

: 7783-70-2
antimony pentafluoride

A: 47936-70-9
xenon fluoride cation

B: 20533-01-1
F5TeOTeF5

C: 44628-79-7
F5OTeXe(1+)

D: 142533-93-5
OXeF(OTeF5)2(1+)

E: 7783-80-4
tellurium hexafluoride

Conditions

Conditions	Yield
In neat (no solvent) further products; heat sealing of the NMR tube with Xe-compound; cooling to -196°C; addn. of SbF5 via syringe; removing tube from drybox while cold- and heat sealing under a dynamic vac. at -196°C; not isolated; detection of compounds at 5°C by NMR;

...Expand

: tellurium oxide

: 7783-54-2
nitrogen trifluoride

: 7783-80-4
tellurium hexafluoride

Conditions

Conditions	Yield
at 363℃; Inert atmosphere;
at 500℃; Inert atmosphere;

: tellurium

: 7783-54-2
nitrogen trifluoride

: 7783-80-4
tellurium hexafluoride

Conditions

Conditions	Yield
at 500℃; Inert atmosphere;

: 7789-78-8
calcium hydride

: 7783-80-4
tellurium hexafluoride

: 14797-71-8
18O-labeled water

A: 114595-23-2
pentafluorotellurate(VI)

B: 543-54-4
pyridinium hydrogen sulfate

Conditions

Conditions	Yield
With H2SO4 In pyridine byproducts: H2, CaF2; Sonication; O2 and H2O excluded: H2(18)O added to CaH2 in pyridine, H2 evolution, reactn. mixt. stirred and sonicated (3d, room temp.), degassed, frozen (-196 ° C), TeF6 added (vac. transfer), heated and stirred (45 ° C, 12h), caution: TeF6-pressure!; pyridine and TeF6 removed (vac.), {pyH(1+)}{(18)OTeF5} extracted into warm CH2Cl2, CH2Cl2 removed (vac., white residue), (19)F NMR, concd. H2SO4 added, vac. distn., (19)F NMR;	A 88% B n/a

Yield

With H2SO4 In pyridine byproducts: H2, CaF2; Sonication; O2 and H2O excluded: H2(18)O added to CaH2 in pyridine, H2 evolution, reactn. mixt. stirred and sonicated (3d, room temp.), degassed, frozen (-196 ° C), TeF6 added (vac. transfer), heated and stirred (45 ° C, 12h), caution: TeF6-pressure!; pyridine and TeF6 removed (vac.), {pyH(1+)}{(18)OTeF5} extracted into warm CH2Cl2, CH2Cl2 removed (vac., white residue), (19)F NMR, concd. H2SO4 added, vac. distn., (19)F NMR;

A 88%
B n/a

...Expand

: 7783-80-4
tellurium hexafluoride

: sodium fluoride

: F2Na2*F6Te

Conditions

Conditions	Yield
molar ratio NaF:TeF6=1:>2; 250°C in autoclave; cooling to room temp.;

: tellurium

: 7783-80-4
tellurium hexafluoride

: 15192-26-4
tellurium(IV) fluoride

Conditions

Conditions	Yield
In not given
In neat (no solvent) on heating to 200°C;;
In neat (no solvent) decomposition with Te;;

: silver fluoride

: 7783-80-4
tellurium hexafluoride

Ag(1+)*TeF7(1-)=AgTeF7: Ag(1+)*TeF7(1-)=AgTeF7

Conditions

Conditions	Yield
With liquid HF reaction of AgF and TeF6 in liquid HF;; evaporation of HF;;

: 7732-18-5
water

: 7783-80-4
tellurium hexafluoride

: 13451-18-8
tellurium oxide

Conditions

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

Si(C2H5)3(18)F: Si(C2H5)3(18)F

: 7783-80-4
tellurium hexafluoride

A: Te(18)F6

B: 358-43-0
triethylsilyl fluoride

Conditions

Conditions	Yield
In further solvent(s) in C6F6; inert atmosphere, 293 K; freezing, distn. (vac.); radioactivity measurement;	A 0% B 0%

...Expand

: 7732-18-5
water

: 7783-80-4
tellurium hexafluoride

: 53078-11-8, 79896-80-3
trans-(HO)4TeF2

: 7732-18-5
water

: 7783-80-4
tellurium hexafluoride

: 53011-51-1, 53108-94-4
cis-(OH)2TeF4

Conditions

Conditions	Yield
In water hydrolysis;

Tellurium hexafluoride Consensus Reports

EPA Extremely Hazardous Substances List. Reported in EPA TSCA Inventory.

Tellurium hexafluoride Standards and Recommendations

OSHA PEL: TWA 0.02 ppm (Te)
ACGIH TLV: TWA 0.02 ppm (Te)
DOT Classification: 2.3; Label: Poison Gas

Tellurium hexafluoride Specification

The Tellurium hexafluoride, with the CAS registry number 7783-80-4 and EINECS registry number 232-027-0, has the systematic name of hexafluoro-λ⁶-tellane. And the molecular formula of this chemical is TeF₆. It is a colorless, highly toxic gas with an extremely unpleasant smell. And it is often used as chemical medicine.

The physical properties of Tellurium hexafluoride are as following: (1)ACD/LogP: -1.94; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): -1.94; (4)ACD/LogD (pH 7.4): -1.94; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 2.1; (8)ACD/KOC (pH 7.4): 2.1; (9)#H bond acceptors: 9; (10)#H bond donors: 5; (11)#Freely Rotating Bonds: 12; (12)Polar Surface Area: 83.07 Å²; (13)Index of Refraction: 1.622; (14)Molar Refractivity: 92.74 cm3; (15)Molar Volume: 263 cm³; (16)Polarizability: 36.76×10^-24cm³; (17)Surface Tension: 59.4 dyne/cm; (18)Density: 1.415 g/cm³; (19)Flash Point: 342.4 °C; (20)Enthalpy of Vaporization: 99.67 kJ/mol; (21)Boiling Point: 642.6 °C at 760 mmHg; (22)Vapour Pressure: 2.17E-17 mmHg at 25°C.

Properties of Tellurium hexafluoride: It is a highly symmetric octahedral molecule, and its physical properties resemble the sulfur and selenium analogs. Due to the increase in molecular weight, it is less volatile. At temperatures below -38 °C, this chemical condenses to a volatile white solid.

Preparation of Tellurium hexafluoride: It can be prepared by passing fluorine gas over tellurium metal at 150 °C. It can also be prepared by passing fluorine gas over TeO₃ or indirectly by reacting TeO₂ with SeF₄ to produce TeF₄ and then heating TeF4 in excess of 200 °C to make TeF₆ and Te.

You should be cautious while dealing with this chemical. It is harmful by inhalation, and it may also cause burns. Besides, if contact with acids, it will liberate toxic gas. Therefore, you had better take the following instructions: Keep container tightly closed in a cool place; Keep container in a well-ventilated place; Wear suitable protective clothing, gloves and eye/face protection; In case of accident or if you feel unwell, seek medical advice immediately (show label where possible).

You can still convert the following datas into molecular structure:
(1)SMILES: F[Te](F)(F)(F)(F)F
(2)InChI: InChI=1/F6Te/c1-7(2,3,4,5)6
(3)InChIKey: NNCGPRGCYAWTAF-UHFFFAOYAP

The toxicity data is as follows:

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
guinea pig	LCLo	inhalation	5ppm/4H (5ppm)	LUNGS, THORAX, OR RESPIRATION: ACUTE PULMONARY EDEMA	Archiv fuer Toxikologie. Vol. 18, Pg. 140, 1960.
mouse	LCLo	inhalation	5ppm/1H (5ppm)	LUNGS, THORAX, OR RESPIRATION: ACUTE PULMONARY EDEMA	Archiv fuer Toxikologie. Vol. 18, Pg. 140, 1960.
rabbit	LCLo	inhalation	5ppm/4H (5ppm)	LUNGS, THORAX, OR RESPIRATION: ACUTE PULMONARY EDEMA	Archiv fuer Toxikologie. Vol. 18, Pg. 140, 1960.
rat	LCLo	inhalation	5ppm/4H (5ppm)	LUNGS, THORAX, OR RESPIRATION: ACUTE PULMONARY EDEMA	Archiv fuer Toxikologie. Vol. 18, Pg. 140, 1960.

Product Name

TELLURIUM HEXAFLUORIDE

Synthetic route

Tellurium hexafluoride Consensus Reports

Tellurium hexafluoride Standards and Recommendations

Tellurium hexafluoride Specification

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