tantalum

• ChemBase ID: 111341
• Molecular Formular: Ta
• Molecular Mass: 180.9479
• Monoisotopic Mass: 180.947995
• SMILES: [Ta]
• Canonical SMILES: [Ta]
• InChI: InChI=1S/Ta
• InChIKey: GUVRBAGPIYLISA-UHFFFAOYSA-N

NAMES AND DATABASE IDS

Names

• IUPAC name: tantalum
• IUPAC Traditional name: tantalum
• Synonyms: TANTALUM; Tantalum, AAS standard solution, Specpure®, Ta 1000 g/ml; Tantalum pellet, 1mm (0.04in) dia x 2mm (0.08in); Tantalum foil, 0.7mm (0.03in) thick; Tantalum foil, 0.127mm (0.005in) thick, hard; Tantalum wire, 0.127mm (0.005in) dia; Tantalum foil, 0.025mm (0.001in) thick; Tantalum powder, -325 mesh, 99.9% (metals basis); Tantalum slug, 6.35mm (0.25in) dia x 12.7mm (0.50in) length; Tantalum, plasma standard solution, Specpure®, Ta 1000 g/ml; Tantalum plate, 6.35mm (0.25in) thick; Tantalum Thinfoil, 0.0127mm (0.0005in) thick; Tantalum, plasma standard solution, Specpure®, Ta 10,000 g/ml; Tantalum gauze, 30 mesh woven from 0.076mm (0.003in) dia wire; Tantalum sputtering target, 50.8mm (2.0in) dia x 6.35mm (0.250in) thick; Tantalum sputtering target, 76.2mm (3.0in) dia x 6.35mm (0.250in) thick; Tantalum sputtering target, 76.2mm (3.0in) dia x 3.18mm (0.125in) thick; Tantalum foil, 0.127mm (0.005in) thick, annealed; Tantalum wire, 0.5mm (0.02in) dia, annealed; Tantalum wire, 0.25mm (0.01in) dia, annealed; Tantalum powder, -22 mesh, Puratronic®; Tantalum rod, 4.5mm (0.18in) dia, Puratronic®; Tantalum wire, 0.7mm (0.03in) dia; Tantalum slug, 3.175mm (0.125in) dia x 3.175mm (0.125in) length; Tantalum slug, 3.175mm (0.125in) dia x 6.35mm (0.25in) length; Tantalum wire, 1.5mm (0.06in) dia, annealed; Tantalum rod, 4.75mm (0.19in) dia; Tantalum rod, 2.8mm (0.11in) dia; Tantalum foil, 1.5mm (0.06in) thick; Tantalum powder, APS ≈2 micron; Tantalum slug, 6.35mm (0.25in) dia x 6.35mm (0.25in) length; Tantalum wire, 0.05mm (0.002in) dia, annealed; Tantalum sputtering target, 50.8mm (2.0in) dia x 3.18mm (0.125in) thick; Tantalum gauze, 50 mesh woven from 0.076mm (0.003in) dia wire; Tantalum wire, 0.025mm (0.001in) dia, hard; Tantalum Thinfoil, 0.0025mm (0.0001in) thick; Tantalum Thinfoil, 0.005mm (0.0002in) thick; Tantalum powder, -100 mesh, Puratronic®; Tantalum wire, 2.0mm (0.08in) dia, annealed; Tantalum wire, 1.0mm (0.04in) dia, annealed; Tantalum foil, 1.0mm (0.04in) thick; Tantalum foil, 2.0mm (0.08in) thick; Tantalum powder, -325 mesh, Puratronic®; Tantalum rod, 6.4mm (0.25in) dia; Tantalum rod, 12.7mm (0.5in) dia, hard; Tantalum foil, 0.025mm (0.001in) thick, hard; Tantalum foil, 0.25mm (0.01in) thick, annealed; Tantalum foil, 0.5mm (0.02in) thick, annealed; Tantalum; 钽, AAS标准溶液, Specpure®, Ta 1000μg/ml; 钽球, 1mm (0.04in) 直径 x 2mm (0.08in); 钽箔, 0.7mm (0.03in) 厚; 钽箔, 0.127mm (0.005in) 厚, 硬质; 钽丝, 0.127mm (0.005in) 直径; 钽箔, 0.025mm (0.001in)厚; 钽粉, -325 目, 99.9% (metals basis); 钽柱体, 6.35mm (0.25in) 直径 x 12.7mm (0.50in) 长; 钽,等离子标准溶液, Specpure®, Ta 1000®g/ml; 钽片, 6.35mm (0.25in)厚; 钽箔, 0.0127mm (0.0005in)厚; 钽,等离子标准溶液, Specpure®, Ta 10,000®g/ml; 钽网, 30目, 0.076mm (0.003in) 直径 线织成; 钽溅射靶, 50.8mm (2.0in) 直径 x 6.35mm (0.250in) 厚; 钽溅射靶, 76.2mm (3.0in) 直径 x 6.35mm (0.250in) 厚; 钽溅射靶, 76.2mm (3.0in) 直径 x 3.18mm (0.125in) 厚; 钽箔, 0.127mm (0.005in) 厚, 退火; 钽丝, 0.5mm (0.02in) 直径, 退火; 钽丝, 0.25mm (0.01in) 直径, 退火; 钽粉, -22 目, Puratronic®; 钽棒, 4.5mm (0.18in) 直径, Puratronic®; 钽线, 0.7mm (0.03in) 直径; 钽柱, 3.175mm (0.125in) 直径 x 3.175mm (0.125in) 长; 钽柱, 3.175mm (0.125in) 直径 x 6.35mm (0.25in) 长; 钽线, 1.5mm (0.06in) 直径,退火; 钽棒, 4.75mm (0.19in) 直径; 钽棒, 2.8mm (0.11in) 直径; 钽箔, 1.5mm (0.06in) 厚; 钽粉, APS≈2微米; 钽柱, 6.35mm (0.25in) 直径 x 6.35mm (0.25in) 长; 钽线, 0.05mm (0.002in) 直径, 退火; 钽溅射靶, 50.8mm (2.0in) 直径 x 3.18mm (0.125in) 厚; 钽网, 50目, 0.076mm (0.003in) 直径 线织成; 钽线, 0.025mm (0.001in) 直径,硬; 钽薄箔, 0.0025mm (0.0001in) 厚; 钽薄箔, 0.005mm (0.0002in) 厚; 钽粉, -100 目, Puratronic®; 钽丝, 2.0mm (0.08in) 直径,退火; 钽丝, 1.0mm (0.04in) 直径, 退火; 钽箔, 1.0mm (0.04in) 厚; 钽箔, 2.0mm (0.08in) 厚; 钽粉, -325 目, Puratronic®; 钽棒, 6.4mm (0.25in) 直径; 钽棒, 12.7mm (0.5in) 直径, 硬质; 钽箔, 0.025mm (0.001in) 厚, 硬质; 钽箔, 0.25mm (0.01in) 厚, 退火; 钽箔, 0.5mm (0.02in) 厚, 退火; 钽

Database IDs

• CAS Number: 7440-25-7
• EC Number: 231-135-5
• MDL Number: MFCD00011252
• PubChem SID: 24855934; 24881447; 24861899; 24855935; 162096604; 24861879; 24861898; 24861880; 24855931; 24855929; 24855932; 24855933; 24878801; 24855930
• PubChem CID: 23956

CALCULATED PROPERTIES

• H Acceptors: 0
• H Donor: 0
• LogD (pH = 5.5): 0.0
• LogD (pH = 7.4): 0.0
• Log P: 0.0
• Molar Refractivity: 0.0 cm^3
• Polarizability: 7.388286 Å^3
• Polar Surface Area: 0.0 Å^2
• Rotatable Bonds: 0
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Apperance: ≈0.0082g/m, Temper: as drawn; ≈0.026g/25x25mm, not certified pinhole free; ≈0.033g/m, Temper: soft; ≈0.052/25x25mm, not certified pinhole free; ≈0.21g/m; ≈0.26g/25x25mm; ≈0.42g/slug; ≈0.81g/m, Temper: soft,; ≈0.83g/slug; ≈10.4g/25x25mm; ≈10.4g/50x50mm, Temper: soft; ≈102g/m; ≈13.0g/m, Temper: soft; ≈14.5g/25x50mm; ≈15.6g/25x25mm; ≈15.8g/75x100mm, Temper: as rolled; ≈2.1g/100x100mm, certified pinhole free; ≈2.64g/cm; ≈20.4g/cm, Temper: as drawn; ≈20.8g/25x25mm; ≈29.3g/m, Temper: soft; ≈3.26g/cm; ≈3.26g/m Temper: soft; ≈3.4g/slug; ≈5.19g/25x25mm; ≈5.34g/cm; ≈5.3g/50x50mm, Temper: soft; ≈52.1g/m, Temper: soft; ≈6.3g/100x150mm, Temper: as rolled; ≈6.4g/m; ≈6.8g/slug; ≈65.9g/25x25mm; foil; Liquid; nanopowder; powder; rod; wire; Wire Cloth
• Melting Point: 2996 °C(lit.)
• Boiling Point: 5425 °C(lit.)
• Auto Ignition Point: 572 °F
• Density: 16.69 g/cm3(lit.)
• Vapor Pressure: <0.01 mmHg ( 537.2 °C)
• Resistivity: 13.5 μΩ-cm, 20°C

Safety Information

• RTECS: WW5505000
• European Hazard Symbols: Flammable (F); Toxic (T); Irritant (Xi)
• UN Number: 3089; UN1790; UN3089; UN3264
• German water hazard class: -; nwg
• Hazard Class: 4.1; 8
• Packing Group: 2; II; III
• Risk Statements: 11-36/37/38; 23/24/25-34; 23/24/25-34-37
• Safety Statements: 26-36/37/39; 26-37-60; 4-9-20-23-26-27-36/37/39-39-45-60; 7/9-26-36/37-45
• TSCA Listed: U; 否; 是
• GHS Pictograms: GHS02; GHS05; GHS06; GHS07
• GHS Signal Word: Warning
• GHS Hazard statements: H228-H315-H319-H335; H300-H310-H330-H314-H318; H301-H311-H315-H318-H333
• GHS Precautionary statements: P210-P241-P305+P351+P338-P302+P352-P405-P501A; P210-P261-P305 + P351 + P338; P260-P301+P310-P303+P361+P353-P304+P340-P305+P351+P338-P320-P330-P361-P405-P501A; P280-P301+P310-P305+P351+P338-P361-P405-P501A
• Personal Protective Equipment: Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
• RID/ADR: UN 3089 4.1/PG 2

Product Information

• Purity: ≥99% trace metals basis; ≥99.9%; ≥99.9% trace metals basis; 99.6%; 99.8%; 99.9%; 99.9% (metals basis); 99.9% trace metals basis; 99.9+% (metals basis); 99.95% (metals basis excluding Nb); 99.95% (metals basis); 99.96% (metals basis), Nb nominal 50ppm; 99.97% (metals basis), Nb 50ppm; 99.98% (metals basis); 99.98% (metals basis), Nb 50ppm; 99.99% trace metals basis; 99.997% (metals basis)
• Particle Size: <25 nm (BET); -325 mesh; -40-+200 mesh; 60-100 mesh
• Diameter: 0.127 mm; 0.5 mm; 1.0 mm; 2.0 mm; 3.2 mm; 6.35 mm
• Thickness: 0.025 mm; 0.05 mm; 0.25 mm; 0.5 mm; 1.0 mm
• Empirical Formula (Hill Notation): Ta

DETAILS

Sigma Aldrich - 356999

Quantity
10 g = 20 cm

Sigma Aldrich - 262862

Packaging
13 g in rigid mailer
Quantity
13 g = 1 m; 65 g = 5 m

Sigma Aldrich - 593486

General description
Macro-agglomeration of ultra-fine particles.
Packaging
5 g in glass bottle

Sigma Aldrich - 357251

Packaging
20.8 g in rigid mailer
Quantity
20.8 g = 50 × 50 mm; 83.2 g = 100 × 100 mm

Sigma Aldrich - 262838

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.1 Starting material for new edge-bridged octahedral M6 cluster compounds such as CsErTa6Cl18, for which electron and stability studies were performed.2

Sigma Aldrich - 356980

Packaging
6.5 g in poly tube
Quantity
6.5 g = 5 cm; 32.5 g = 25 cm

Sigma Aldrich - 692824

Packaging
5 g in poly bottle

Sigma Aldrich - 262900

Quantity
200 mg = 1 m

Sigma Aldrich - 262897

Packaging
10.4, 41.6 g in rigid mailer

Sigma Aldrich - 262919

Packaging
9, 31 g in poly tube
Quantity
9 g = 150 × 150 mm; 31 g = 150 × 500 mm

Sigma Aldrich - 262854

Packaging
25, 125 g in poly tube
Quantity
25 g = 5 cm; 125 g = 25 cm

Sigma Aldrich - 262846

Packaging
25, 100 g in poly bottle
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.1 Starting material for new edge-bridged octahedral M6 cluster compounds such as CsErTa6Cl18, for which electron and stability studies were performed.2

Sigma Aldrich - 357243

Packaging
8.4, 18.9 g in glass bottle
Quantity
2.1 g = 50 × 50 mm; 8.4 g 100 × 100 mm; 18.9 g = 150 × 150 mm

Sigma Aldrich - 545007

Packaging
10 g in glass bottle

Sigma Aldrich - 357006

Packaging
3.3 g in rigid mailer
Quantity
3.3 g = 1 m; 33 g = 10 m

Sigma Aldrich - 262889

Packaging
10.4 g in rigid mailer
Quantity
10.4 g = 25 × 25 mm; 41.6 g = 50 × 50 mm