Skip to Content
Merck
CN

Key Documents

View All Documentation

545007

Tantalum

powder, 99.99% trace metals basis

Synonym(s):

Ta

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Empirical Formula (Hill Notation):
Ta
CAS Number:
7440-25-7
Molecular Weight:
180.95
NACRES:
NA.23
PubChem Substance ID:
24878801
UNSPSC Code:
12141741
MDL number:
MFCD00011252
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

vapor pressure

<0.01 mmHg ( 537.2 °C)

assay

99.99% trace metals basis

form

powder

autoignition temp.

572 °F

reaction suitability

core: tantalum

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

signalword

Danger

hcodes

H228

Hazard Classifications

Flam. Sol. 1

Storage Class

4.1B - Flammable solid hazardous materials

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCW7648
MKCS1730
MKCK3662
MKCF6116
MKBW4038V

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

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

Visit the Document Library

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.

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
View All Related Papers

Global Trade Item Number

SKUGTIN
545007-10G04061833432310