Skip to Content
Merck
All Photos(3)

Key Documents

View All Documentation

262846

Sigma-Aldrich

Tantalum

powder, −325 mesh, 99.9% trace metals basis

Synonym(s):

Ta

Sign Into View Organizational & Contract Pricing
All Photos(3)

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:
24855929
NACRES:
NA.23

vapor pressure

<0.01 mmHg ( 537.2 °C)

Assay

99.9% trace metals basis

form

powder

autoignition temp.

572 °F

resistivity

13.5 μΩ-cm, 20°C

particle size

−325 mesh

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

Employed in the synthesis of metal-rich layered tellurides, TaNi2Te2 and TaCo2Te2, which possess ideal characteristics for photovoltaic applications, for surface scanning studies, and which may give clean and atomically flat surfaces. Starting material for new edge-bridged octahedral M6 cluster compounds such as CsErTa6Cl18, for which electron and stability studies were performed.

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Customers Also Viewed

Slide 1 of 4

1 of 4

Niobium powder, max. particle size 74 micron, weight 200&#160;g, purity 99.85%

GF41005718

Niobium

Tantalum foil, thickness 0.25&#160;mm, &#8805;99.9% trace metals basis

Sigma-Aldrich

262897

Tantalum

Titanium powder, &#8722;100&#160;mesh, 99.7% trace metals basis

Sigma-Aldrich

268496

Titanium

Tantalum(V) oxide 99% trace metals basis

Sigma-Aldrich

303518

Tantalum(V) oxide

Ogliaro, F. et al.
Inorganic Chemistry, 37, 6199-6199 (1998)
Neuhasen, J. et al.
Chemistry of Materials, 10, 3870-3870 (1998)
Thomas Larzon et al.
Vascular, 21(2), 87-91 (2013-03-20)
Control of back bleeding from the hypogastric artery into the aneurysm after endovascular aneurysm repair (EVAR) of a ruptured aorto-iliac aneurysm may be necessary in order to avoid a type II endoleak. It is an emergency situation and selective catheterization
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)
A M Ashmore et al.
Journal of biomechanics, 45(16), 2931-2934 (2012-10-13)
Interest in soft tissue RadioStereometric Analysis (RSA) is rising. Previous studies have attempted to use this technique to analyse anterior cruciate ligament (ACL) graft constructs, and more recently, the movement of soft tissue as a precursor to RSA follow up
View All Related Papers

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.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service