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Merck
CN

545007

Sigma-Aldrich

Tantalum

powder, 99.99% trace metals basis

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

Key Documents

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vapor pressure

<0.01 mmHg ( 537.2 °C)

Quality Level

100

Assay

99.99% trace metals basis

form

powder

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)
Yongyuan Guo et al.
International journal of molecular medicine, 31(3), 689-697 (2013-01-23)
Titanium (Ti) alloys of the β-type are highly attractive metallic materials for biomedical applications due to their low elastic modulus, high corrosion resistance and notable biocompatibility. A new β-type Ti35Nb2Ta3Zr alloy with a low Young's modulus of approximately 48 GPa was previously
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)
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
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Articles

Self-Propagating Reactions Induced by Mechanical Alloying

An article concerning self-propagating reactions induced by mechanical alloying, presented by Sigma-Aldrich.com.

Biomedical Implant Devices Fabricated from Low Young’s Modulus Titanium Alloys Demonstrating High Mechanical Biocompatibility

Biomedical implants are essentially foreign substances within the human body that must survive many years’ exposure to demanding mechanical and physiological conditions. Despite these challenges, metal implants have been widely used to substitute for or rebuild hard tissues such as bones and teeth.

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