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545007

Sigma-Aldrich

Tantalum

Synonym(s):

Ta

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About This Item

Empirical Formula (Hill Notation):
Ta
CAS Number:
7440-25-7
Molecular Weight:
180.95
MDL number:
MFCD00011252
UNSPSC Code:
12141741
PubChem Substance ID:
24878801
NACRES:
NA.23

vapor pressure

<0.01 mmHg ( 537.2 °C)

Quality Level

100

autoignition temp.

572 °F

resistivity

13.5 μΩ-cm, 20°C

bp

5425 °C (lit.)

mp

2996 °C (lit.)

density

16.69 g/cm3 (lit.)

SMILES string

[Ta]

InChI

1S/Ta

InChI key

GUVRBAGPIYLISA-UHFFFAOYSA-N

Application

Tantalum powder, a semiconducting material, is used as a photocatalyst and shows high efficiency in the solar splitting of water. Its biocompatibility makes it useful in the development of medical devices and implants.

Pictograms

Flame
GHS02

Signal Word

Danger

Hazard Statements

H228

Hazard Classifications

Flam. Sol. 1

Storage Class Code

4.1B - Flammable solid hazardous materials

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW7648
MKCS1730
MKCK3662
MKCF6116
MKBW4038V

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Tantalum-based semiconductors for solar water splitting
Zhang P, et al.
Chemical Society Reviews, 43(13), 4395-4422 (2014)
Additively manufactured porous tantalum implants
Wauthle R, et al.
Acta Biomaterialia, 14(13), 217-225 (2015)
S Nag et al.
Journal of the mechanical behavior of biomedical materials, 16, 21-28 (2012-11-10)
Microstructure and mechanical properties of laser deposited complex quaternary Ti-34Nb-7Zr-7Ta (all wt%), an orthopedic load-bearing implant alloy, has been investigated in detail in both as-deposited as well as heat-treated (β-solutionized and quenched) conditions. The difference in stress-strain behavior of this
Hany A El-Sayed et al.
Nanoscale, 5(4), 1494-1498 (2013-01-23)
Ta oxide nanotubes (NTs) were formed by the anodization of Ta at 15 V in a solution of concentrated sulfuric acid containing 0.8-1.0 M hydrofluoric acid. To study the initial stages of NT formation, FESEM images of samples anodized for
Orbital ultrasound in the selective screening of a dural-cavernous sinus fistula.
Hamid Shokoohi et al.
European journal of emergency medicine : official journal of the European Society for Emergency Medicine, 20(2), 137-139 (2013-02-26)
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