Tantalum fluoride supplier | CasNO.7783-71-3

Name
TANTALUM PENTAFLUORIDE
EINECS 232-022-3
CAS No. 7783-71-3
Article Data52
CAS DataBase
Density 4.74 g/cm³
Solubility Soluble in water, ether, slightly soluble in hot carbon disulfide, carbon tetrachloride and cold concentrated sulfuric acid
Melting Point 96.8 °C
Formula F₅Ta
Boiling Point 229.5 °C
Molecular Weight 275.94
Flash Point 230 °C
Transport Information UN 3260 8/PG 2
Appearance white crystalline powder
Safety 26-27-28-36/37/39-45
Risk Codes 34
Molecular Structure
Hazard Symbols C
Synonyms Tantalumfluoride;Tantalum pentafluoride;Tantalum(V) fluoride;
PSA 0.00000
LogP 2.10100

Synthetic route

: tantalum(V) oxide

: 353-50-4
Carbonyl fluoride

A: 7783-71-3
tantalum pentafluoride

B: 124-38-9
carbon dioxide

Conditions

Conditions	Yield
In neat (no solvent) slight excess over the stoich. amt. of COF2 required; reaction mixt. heated in a stainless steel or monel cylinder at 210°C for 46 h;	A 100% B n/a

...Expand

: tantalum

: 7664-39-3
hydrogen fluoride

A: 7783-71-3
tantalum pentafluoride

B: 13814-17-0
tantalum trifluoride

Conditions

Conditions	Yield
300 °C;	A 90% B n/a
300 °C;	A 90% B n/a
300 °C;	A 90% B n/a

...Expand

: 3BaF2*2TaF5

: 7783-71-3
tantalum pentafluoride

Conditions

Conditions	Yield
2 h at 1000 °C;	70%
2 h at 1000 °C;	70%

: tantalum

: stannous fluoride

A: 7440-31-5
tin

B: 7783-71-3
tantalum pentafluoride

Conditions

Conditions	Yield
In melt placing of mixt. of Ta with SnF2 (molar ratio SnF2:Ta=1.46) in Fluoroplast-4 ampule, closing by screwed stopper, exposition for 1.00 h at 240°C; various product ratio yields for various conditions; cooling, stirring up in water, collection, drying;	A 9.2% B n/a

...Expand

: tantalum

: 7790-91-2
chlorine trifluoride

: 7783-71-3
tantalum pentafluoride

Conditions

Conditions	Yield
In neat (no solvent) at ambient temp.;;
heating in quartz vessel; excess ClF3 is washed out by liq. HF;
In neat (no solvent) reaction with formation of heat;;
In neat (no solvent) reaction with formation of heat;;
heating in quartz vessel; excess ClF3 is washed out by liq. HF;

: tantalum

: 7664-39-3
hydrogen fluoride

: 7783-71-3
tantalum pentafluoride

Conditions

Conditions	Yield
Kinetics; 473-593 K, 0.1-0.3 atm of HF;
In water byproducts: H2; concd. HF;;

: tantalum

: 7664-39-3
hydrogen fluoride

A: 7783-71-3
tantalum pentafluoride

B: 1333-74-0
hydrogen

Conditions

Conditions	Yield
With dihydrogen hexachloroplatinate In water byproducts: Pt; In presence of H2PtCl6 complete reaction at ambient temp. within a few minutes; H2PtCl6 is reduced to form Pt;;	A >99 B n/a

...Expand

: tantalum

: 7782-41-4
fluorine

: 7783-71-3
tantalum pentafluoride

Conditions

Conditions	Yield
in a quartz system;
in monel or Ni tube at about 300 °C; sepn. of products by cooling, then purifn. by sublimation;
In gaseous matrix Ta was reacted with F2 at 230-1200°C in Ar matrix; monitored by IR;

: tantalum(V) oxide

: 7664-39-3
hydrogen fluoride

: 7783-71-3
tantalum pentafluoride

: tantalum(V) oxide

: 7664-39-3
hydrogen fluoride

A: 7783-71-3
tantalum pentafluoride

B: tantalum(V) dioxide fluoride

Conditions

Conditions	Yield
200 to 500°C;

...Expand

: 7664-39-3
hydrogen fluoride

: 7721-01-9
tantalum pentachloride

: 7783-71-3
tantalum pentafluoride

: 7664-39-3
hydrogen fluoride

: 7721-01-9
tantalum pentachloride

A: 7647-01-0
hydrogenchloride

B: 7783-71-3
tantalum pentafluoride

Conditions

Conditions	Yield
In hydrogen fluoride in 3% hydrofluoric acid for 4 min.;
In hydrogen fluoride aq. HF; in 3% hydrofluoric acid for 4 min.;

...Expand

: tantalum(V) dioxide fluoride

: 7664-39-3
hydrogen fluoride

: 7783-71-3
tantalum pentafluoride

Conditions

Conditions	Yield
Kinetics; 200 to 500°C;

: tantalum(V) oxide

: 7787-71-5
bromine trifluoride

: 7783-71-3
tantalum pentafluoride

Conditions

Conditions	Yield
315°C; 15 h;	>99
315°C; 15 h;	>99

: 7784-35-2
arsenic(III) fluoride

: 7721-01-9
tantalum pentachloride

: 7783-71-3
tantalum pentafluoride

Conditions

Conditions	Yield
excess AsF3;

: iron(II) niobate

: 7664-39-3
hydrogen fluoride

: 7783-71-3
tantalum pentafluoride

Conditions

Conditions	Yield
dark red heat;
dark red heat;

: tantalum

: 13709-36-9
xenon difluoride

: 7783-71-3
tantalum pentafluoride

Conditions

Conditions	Yield
In neat (no solvent) powdered metal treated with XeF2 (air-tight autoclave, 200-300°C);

: tantalum

: fluorine

: 7783-71-3
tantalum pentafluoride

Conditions

Conditions	Yield
slight warming;;
slight warming;;

: tantalum

: 7787-71-5
bromine trifluoride

: 7783-71-3
tantalum pentafluoride

Conditions

Conditions	Yield
In further solvent(s) in cooled bromine, then heating;

: 35967-87-4
BrF2(1+)*TaF6(1-)=(BrF2)TaF6

A: 7783-71-3
tantalum pentafluoride

B: 7787-71-5
bromine trifluoride

Conditions

Conditions	Yield
heating in vac.;

TaO2F: TaO2F

: 7783-71-3
tantalum pentafluoride

Conditions

Conditions	Yield
heating in dry O2;

: ammonium tantalum heptafluoride

: 7783-71-3
tantalum pentafluoride

Conditions

Conditions	Yield
In neat (no solvent) byproducts: NH4F; heating on top of a pt-sheet;;
In neat (no solvent) byproducts: NH4F; heating on top of a pt-sheet;;

: 2TaF5*XeF2

A: 7783-71-3
tantalum pentafluoride

B xenon: xenon

C: 7782-41-4
fluorine

Conditions

Conditions	Yield
78 °C;
78 °C;

...Expand

barium tantalum octafluoride: barium tantalum octafluoride

A barium fluoride: barium fluoride

B: 7783-71-3
tantalum pentafluoride

Conditions

Conditions	Yield
In neat (no solvent) heating in a stream of dry air at 1000 °C;;	A >99 B n/a
In neat (no solvent) heating in a stream of dry air at 1000 °C;;	A >99 B n/a

: 13597-27-8
TaO2F

A: 7783-71-3
tantalum pentafluoride

: FO7Ta3, high temperature

Conditions

Conditions	Yield
850 °C in Ar stream;

: 82620-05-1
tantalum-pentakis-pentafluorotellurate(VI)

A: 7783-71-3
tantalum pentafluoride

B: TeOF4

Conditions

Conditions	Yield
In neat (no solvent, solid phase) slow decompn. at room temp.; mass-spectroscopy;

: tantalum

: 7783-71-3
tantalum pentafluoride

Conditions

Conditions	Yield
With tetrafluoroethylene-vinylidene fluoride copolymer In neat (no solvent) mechanical mixt. of metal and fluoropolymer (molar ratio 1:5-6) prepd. by hot pressing on press with heating plates; heated to 423 K; load of 20MPa was applied for 5 min; cooled to 353 K; load was removed; mixt. was withdrawn or heated to 673 K; MS; TG; DSC;

: 7783-71-3
tantalum pentafluoride

: 10035-10-6, 12258-64-9
hydrogen bromide

: C2H5OHC2H5(1+)*TaF5Br(1-)*C2H5OC2H5=HTaF5Br*2C2H5OC2H5

Conditions

Conditions	Yield
With diethyl ether In diethyl ether a calcd. amt. of TaF5 was added to a soln. of HBr in ether (saturated at 0°C) under N2; the reaction vessel was left at room temp. for several hours;; after sepn. of two upper layers from the bottom layer, the solvent was pumped off from the latter at 5 Torr and 25°C within 40 min; elem.anal.;;	85%

: 7783-71-3
tantalum pentafluoride

: 1529-17-5
phenyltrimethylsilyl ether

: 61436-53-1
TaF4(OPh)

Conditions

Conditions	Yield
In dichloromethane at 20℃; for 5 - 10h; Inert atmosphere; Schlenk technique;	85%

: 7783-71-3
tantalum pentafluoride

: 1153-05-5, 856568-31-5
triphenylarsineoxide

: 71667-25-9
[TaF5(OAs(phenyl)3)]

Conditions

Conditions	Yield
In dichloromethane for 0.333333h; Inert atmosphere; Schlenk technique;	85%

: 7783-71-3
tantalum pentafluoride

: 13246-32-7
ortho-phenylenebis(dimethylarsine)

: 1614218-74-4
[TaF4{o-C6H4(AsMe2)2}2][TaF6]

Conditions

Conditions	Yield
In acetonitrile for 1.33333h; Inert atmosphere; Schlenk technique;	85%

: 7783-71-3
tantalum pentafluoride

: 244187-81-3
1,3-bis-(2,6-diisopropylphenyl)-imidazol-2-ylidene

: C27H36F5N2Ta

Conditions

Conditions	Yield
In toluene at 20℃; for 14h; Glovebox; Schlenk technique; Inert atmosphere;	83.6%

: 66-71-7
1,10-Phenanthroline

: 7783-71-3
tantalum pentafluoride

: 1562735-17-4
[TaF4(1,10-phenanthroline)2][TaF6]

Conditions

Conditions	Yield
In dichloromethane Inert atmosphere; Schlenk technique;	83%

: 7783-71-3
tantalum pentafluoride

: 23936-60-9
1,2-bis(dimethylphosphanyl)ethane

: 1614218-76-6
[TaF4{Me2P(CH2)2PMe2}2][TaF6]

Conditions

Conditions	Yield
In acetonitrile for 1h; Inert atmosphere; Schlenk technique;	83%

: 7783-71-3
tantalum pentafluoride

2,3,5,6,8,9,11,12-octahydro-1,4,7,10,13-benzopentaoxacyclopentadecin: 2,3,5,6,8,9,11,12-octahydro-1,4,7,10,13-benzopentaoxacyclopentadecin

: 7664-39-3
hydrogen fluoride

: 7732-18-5
water

: [(benzo-15-crown-5)2*H5O2][TaF6][(benzo-15-crown-5)2*H3O][TaF6]

Conditions

Conditions	Yield
In hydrogen fluoride aq. HF; TaF5 in aq. 45% HF added to soln. of crown ether; stored at 20-25°C in exsiccator for a low evapn. of solvent over several days;	82%

...Expand

: 7783-71-3
tantalum pentafluoride

: 1,4-difluoro-2,5-dimethoxybenzene

: 1236036-54-6
(TaF5)2[μ-κ2-1,4-(OMe)2-2,5-C6H2F2]

Conditions

Conditions	Yield
In dichloromethane under Ar using standard Schlenk techniques; TaF5 (0.50 mmol) added to stirred soln. of 1,4-(OMe)2-2,5-C6H2F2 (0.25 mmol); stirred (4 h); crystd. from CH2Cl2/pentane (-20°C); elem. anal.;	82%

titanium(IV) oxide bis(2,4-pentanedionate): titanium(IV) oxide bis(2,4-pentanedionate)

: 7783-71-3
tantalum pentafluoride

: [TaF4{OTi(acac)2}2]-[TaF6]

Conditions

Conditions	Yield
In dichloromethane-d2 for 0.5h; Schlenk technique; Inert atmosphere;	82%

: 7783-71-3
tantalum pentafluoride

: 791-28-6
Triphenylphosphine oxide

: 62550-41-8
[TaF5(OP(phenyl)3)]

Conditions

Conditions	Yield
In dichloromethane Inert atmosphere; Schlenk technique;	81%
In dichloromethane (N2); triphenylphosphine oxide added to a soln. of TaF5 in equimolar ratio; evapd.; washed with toluene; dried; elem. anal.;
In toluene (N2); triphenylphosphine oxide added to a soln. of TaF5 in equimolar ratio; cooled to room temp.; pptd.; separated; washed with toluene; dried; elem. anal.;
In acetonitrile (N2); triphenylphosphine oxide added to a soln. of TaF5 in equimolar ratio; evapd.; washed with toluene; dried; elem. anal.;

: 7783-71-3
tantalum pentafluoride

: 79-11-8
chloroacetic acid

: [TaF4(chloroacetic acid)2][TaF6]

Conditions

Conditions	Yield
In dichloromethane (Ar); suspension of TaF5 in CH2Cl2 treated with CH2ClCOOH; stirred for 30 min; layered with pentane; 12 h; elem. anal.;	81%

: 7783-71-3
tantalum pentafluoride

: 1529-17-5
phenyltrimethylsilyl ether

: 1409932-37-1
TaF3(OPh)2

Conditions

Conditions	Yield
In dichloromethane at 20℃; for 5 - 10h; Inert atmosphere; Schlenk technique;	81%

: 109-99-9
tetrahydrofuran

: 7783-71-3
tantalum pentafluoride

: 1004510-59-1
[TaF5(C4H8O)]

Conditions

Conditions	Yield
In tetrahydrofuran; dichloromethane (Ar); std. Schlenk technique; suspn. of TaF5 in CH2Cl2 was treated with THF (0.5 equiv.); mixt. was stirred at room temp. for 30 min; filtered; dried (vac.); crystd. (CH2Cl2/pentane, -30°C); elem. anal.;	79%
In dichloromethane-d2 Ar, a large excess of THF aded to a suspn., reacted for 1 min; not isolated, detected by NMR;
In tetrahydrofuran; chloroform (Ar); std. Schlenk technique; suspn. of TaF5 in CHCl3 was treated with THF (2 equiv.); mixt. was refluxed;

: 7783-71-3
tantalum pentafluoride

: 91-16-7
1,2-dimethoxybenzene

: [TaF4(κ2-1,2-dimethoxybenzene)][Nb2F11]

Conditions

Conditions	Yield
In dichloromethane under Ar using standard Schlenk techniques; suspn. of TaF5 (0.60 mmol) treated with 1,2-dimethoxybenzene (0.60 mmol); stirred (2 h); filtered; dried (vac.); solvent removed; elem. anal.;	79%

Tantalum fluoride Consensus Reports

Reported in EPA TSCA Inventory.

Tantalum fluoride Standards and Recommendations

OSHA PEL: TWA 2.5 mg(F)/m³
ACGIH TLV: TWA 2.5 mg(F)/m³; BEI: 3 mg/g creatinine of fluorides in urine prior to shift; 10 mg/g creatinine of fluorides in urine at end of shift.
NIOSH REL: TWA 2.5 mg(F)/m³

Tantalum fluoride Specification

The Tantalum fluoride with CAS registry number of 7783-71-3 is also known as Tantalum(V) fluoride. The IUPAC name is Pentafluorotantalum. It belongs to product categories of Tantalum Salts; Catalysis and Inorganic Chemistry; Chemical Synthesis; Salts; TantalumMetal and Ceramic Science. Its EINECS registry number is 232-022-3. In addition, the formula is F₅Ta and the molecular weight is 275.94. This chemical is a white crystalline powder and should be stored in sealed containers in cool and dry place.

Physical properties about Tantalum fluoride are: (1)H-Bond Acceptor: 5; (2)Exact Mass: 275.940012; (3)MonoIsotopic Mass: 275.940012; (4)Heavy Atom Count: 6; (5)Complexity: 37.1; (6)Covalently-Bonded Unit Count: 1.

Preparation of Tantalum fluoride: it is prepared by reaction of tantalum(V) chloride with anhydrous hydrofluoric acid. Solid tantalum pentafluoride is obtained by condensation and filtration separation of the reaction mixture. Then the solid is sublimated in a vacuum to generate product.

TaCl₅+5HF→TaF₅+5HCl

Uses of Tantalum fluoride: it is used for chemical vapor deposition of tantalum and ion implantation doping. What's more, it is used as organic synthesis catalyst.

When you are using this chemical, please be cautious about it. As a chemical, it may cause burns. During using it, wear suitable protective clothing, gloves and eye/face protection. After contact with skin, take off immediately all contaminated clothing, and wash immediately. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. If accident happens or you feel unwell seek medical advice immediately.

You can still convert the following datas into molecular structure:
1. Canonical SMILES: F[Ta](F)(F)(F)F
2. InChI: InChI=1S/5FH.Ta/h5*1H;/q;;;;;+5/p-5
3. InChIKey: YRGLXIVYESZPLQ-UHFFFAOYSA-I

Product Name

TANTALUM PENTAFLUORIDE

Synthetic route

Tantalum fluoride Consensus Reports

Tantalum fluoride Standards and Recommendations

Tantalum fluoride Specification

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