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Tantalum pentoxide

Product Name
Tantalum pentoxide
CAS No.
1314-61-0
Chemical Name
Tantalum pentoxide
Synonyms
TANTALUM OXIDE;TANTALUM(V) OXIDE;Ta2-O5;tantalic oxide;Tantalum(Ⅴ)oxide;TANTALUM(+5)OXIDE;tatalum pentoxide;Ditantalpentaoxid;TANTALUM PENTOXIDE;tantalumpentaoxide
CBNumber
CB1282629
Molecular Formula
O5Ta2
Formula Weight
441.89
MOL File
1314-61-0.mol
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Tantalum pentoxide Property

Melting point:
1872 °C
Density 
8.2 g/mL at 25 °C(lit.)
storage temp. 
Sealed in dry,Room Temperature
solubility 
insoluble in H2O, ethanol, acid solutions; sHF
form 
lumps
color 
White to white-beige
Specific Gravity
8.2
Resistivity
1.0 ∞ 10*12 (ρ/μΩ.cm)
Water Solubility 
Insoluble in water.
Crystal Structure
Trigonal
Merck 
14,9056
crystal system
Nogata
Space group
Pmm2
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.38884.0290.61989090900.9709
Dielectric constant
11.6(Ambient)
Exposure limits
OSHA: TWA 5 mg/m3
NIOSH: IDLH 2500 mg/m3; TWA 5 mg/m3; STEL 10 mg/m3
InChI
InChI=1S/5O.2Ta
InChIKey
PBCFLUZVCVVTBY-UHFFFAOYSA-N
SMILES
[Ta](=O)(=O)O[Ta](=O)=O
CAS DataBase Reference
1314-61-0(CAS DataBase Reference)
EPA Substance Registry System
Tantalum oxide (Ta2O5) (1314-61-0)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
37/39-26
WGK Germany 
-
RTECS 
WW5855000
TSCA 
Yes
HS Code 
28259085
Toxicity
LD50 orally in rats: 8000 mg/kg (Cochran)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H320Causes eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P337+P313IF eye irritation persists: Get medical advice/attention.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
204536
Product name
Tantalum(V) oxide
Purity
<20 μm, 99.99% trace metals basis
Packaging
10g
Price
$117
Updated
2024/03/01
Sigma-Aldrich
Product number
204536
Product name
Tantalum(V) oxide
Purity
<20 μm, 99.99% trace metals basis
Packaging
50g
Price
$415
Updated
2024/03/01
Alfa Aesar
Product number
010881
Product name
Tantalum(V) oxide, Puratronic?, 99.993% (metals basis excluding Nb)
Purity
Nb 50ppm max
Packaging
100g
Price
$529
Updated
2024/03/01
Alfa Aesar
Product number
010881
Product name
Tantalum(V) oxide, Puratronic?, 99.993% (metals basis excluding Nb)
Purity
Nb 50ppm max
Packaging
25g
Price
$161
Updated
2023/06/20
Strem Chemicals
Product number
73-2000
Product name
Tantalum(V) oxide, 99.8% (99.95+%-Ta)
Packaging
25g
Price
$89
Updated
2024/03/01
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Tantalum pentoxide Chemical Properties,Usage,Production

Chemical Properties

white to white-beige powder

Chemical Properties

Tantalum pentoxide, Ta2O5, is a white powder existing in two thermodynamically stable modifications. The orthorombic b-phase changes at 1,360 °C (2,480 °F) into the tetragonal a-modification. The existence of an e-modification has also been reported. Tantalum pentoxide reacts slowly with hot hydrofluoric acid but is insoluble in water and in most solutions of acids and alkalies. For analytical purposes, it can be dissolved by fusion with alkali hydroxides, alkali carbonates, and potassium pyrosulfate.

Physical properties

White orthorhombic crystal or powder; density 8.20 g/cm3; melts at 1,785°C; insoluble in water, ethanol and practically all acids; soluble in hydrofluoric acid; solubilized by fusion with caustic potash or potassium hydrogen sulfate.

Physical properties

Dielectric used in film supercapacitors. Tantalum oxide is a high-refractiveindex, low-absorption material used in making optical coatings in the near-UV (350 nm) to IR (8 μm). Insoluble in most chemicals except HF, HF-HNO3 mixtures, oleum, fused alkali hydroxides (e.g., NaOH, KOH), and molten pyrosulfates.

Uses

Tantalum oxide is used to make optical glass for lenses and in electronic circuits.

Uses

Tantalum pentoxide is used in making high refractive index optical glass; as a dielectric film on tantalum for its use as a capacitor component and rectifier; and for preparing tantalum metal, its carbide, and many other tantalum compounds.

Uses

Tantalum pentoxide (Ta2O5) is used to make special optical glass, for lasers, and in electronic circuits.

Preparation

Tantalum pentoxide is obtained as an intermediate in extracting tantalum from the columbite-tantalite series of minerals. Also, the oxide can be made by heating Ta metal in oxygen or air at elevated temperatures.

General Description

Tantalum pentoxide is dielectric in nature making it useful for making capacitors in the electronics industry.

Hazard

TLV: 5 mg/m3.

Flammability and Explosibility

Non flammable

Safety Profile

Mildly toxic by ingestion. Incompatible with ClF3, BrF3, Li. See also TANTALUM.

Tantalum pentoxide Preparation Products And Raw materials

Raw materials

Preparation Products

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Tantalum pentoxide Suppliers

Beijing Lihebo New Material Co., Ltd.
Tel
+86-18833660223 +86-16630606139
Email
2640560053@qq.com
Country
China
ProdList
16
Advantage
58
Shanghai Yunfu Nano Technology Co., LTD
Tel
15796584478; 15796584478
Email
3246531796@qq.com
Country
China
ProdList
500
Advantage
58
Shaanxi Henghan New Materials Co., Ltd
Tel
15619311539
Email
907967238@qq.com
Country
China
ProdList
2658
Advantage
58
Beijing HwrkChemical Technology Co., Ltd
Tel
010-89508211 18501085097
Fax
010-89508210
Email
sales.bj@hwrkchemical.com
Country
China
ProdList
8418
Advantage
55
Baoji Funuokang Industrial Co., Ltd
Tel
13220096790
Email
1754423088@qq.com
Country
China
ProdList
2996
Advantage
58
J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
94657
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
021-61259108 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
INTATRADE GmbH
Tel
+49 3493/605464
Fax
+49 3493/605470
Email
sales@intatrade.de
Country
Germany
ProdList
3572
Advantage
66
future industrial shanghai co., ltd
Tel
400-0066400 13621662912
Fax
021-55660885
Email
sales@jonln.com
Country
China
ProdList
1995
Advantage
65
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30123
Advantage
84
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View Lastest Price from Tantalum pentoxide manufacturers

Shaanxi Dideu Medichem Co. Ltd
Product
Tantalum pentoxide 1314-61-0
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99.0%
Supply Ability
10000KG
Release date
2024-09-04
Beijing Rehoboth New Materials Co., Ltd
Product
Ta2O5 1314-61-0
Price
US $550.00-5000.00/Kg
Min. Order
1Kg
Purity
99.99%
Supply Ability
20ton
Release date
2024-05-15
henan kanbei chemical co.,ltd
Product
Tantalum pentoxide 1314-61-0
Price
US $0.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
1000kg
Release date
2022-09-27

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