262897

Tantalum

foil, thickness 0.25 mm, ≥99.9% trace metals basis

• Synonym(s): Ta
• Empirical Formula (Hill Notation): Ta
• CAS Number: 7440-25-7
• Molecular Weight: 180.95
• EC Number: 231-135-5
• MDL number: MFCD00011252
• UNSPSC Code: 12141741
• PubChem Substance ID: 24855933
• NACRES: NA.23

Properties

• vapor pressure: <0.01 mmHg ( 537.2 °C)
• Quality Level: 100
• Assay: ≥99.9% trace metals basis
• form: foil
• autoignition temp.: 572 °F
• resistivity: 13.5 μΩ-cm, 20°C
• thickness: 0.25 mm
• 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

Description

General description

The structure of tantalum is body centered cubic (BCC) metal. It is a refractory metal; stable up to very high temperatures. Tantalum is ductile at room temperature and moderately ductile at cryogenic temperatures. Compton profile of highly pure thin elemental foil of tantalum was investigated using IGP type coaxial photon detector.1

Quantity

50x50 mm (approximately 10.4 g)
100x100 mm (approximately 41.6 g)

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: nwg
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves