HAFNIUM
- $26 - $5450
- Product name: HAFNIUM
- CAS: 7440-58-6
- MF: Hf
- MW: 178.49
- EINECS:231-166-4
- MDL Number:MFCD00011032
- Synonyms:celtium ;hafniummetal,dry(dot) ;hafniummetal,wet(dot) ;hafniumpowder ;HAFNIUM POWDER, -60+325 MESH, 99.6% (METALS BASIS EXCLUDING;HAFNIUM WIRE, 0.25MM (0.01IN) DIA, 99.97% (METALS BASIS EXCL;HAFNIUM CRYSTAL BAR, 99.7% (METALS BASIS EXCLUDING ZR), ZR N;HAFNIUM FOIL, 0.75MM (0.03IN) THICK, 99.5% (METALS BASIS EXC
443 prices
Selected condition:
Brand
- Alfa Aesar
- American Custom Chemicals Corporation
- ProChem
- Sigma-Aldrich
- Strem Chemicals
- Usbiological
Package
- 2m
- 5MG
- 10m
- 50mm
- 250mm
- 25x25mm
- 1g
- 2g
- 50x50mm
- 50x80mm
- 5gm
- 5g
- 10g
- 100x100mm
- 80x250mm
- 25g
- 25gm
- 1ea
- 50g
- 100gm
- 100mL
- 100g
- 2ea
- 5ea
- 250g
- 500gm
- 10ea
- 20ea
- 1kg
- 25cm
- 50ea
- 50cm
- 100cm
- 500cm
- 1pc
- ManufacturerAlfa Aesar
- Product number010205
- Product descriptionHafnium wire, 1.0mm (0.04in) dia, 99.95% (metals basis excluding Zr), Zr nominal 3%
- Packaging100cm
- Price$131
- Updated2023-06-20
- Buy
- ManufacturerAlfa Aesar
- Product number039683
- Product descriptionHafnium pieces, 3-12mm (0.12-0.47in), 99.9% (metals basis excluding Zr), Zr nominal 2%
- Packaging10g
- Price$129
- Updated2023-06-20
- Buy
- ManufacturerAlfa Aesar
- Product number010202
- Product descriptionHafnium powder, -60+325 mesh, 99.6% (metals basis excluding Zr), Zr nominal 2-3.5%
- Packaging10g
- Price$101
- Updated2023-06-20
- Buy
- ManufacturerAlfa Aesar
- Product number013305
- Product descriptionHafnium wire, 2.0mm (0.08in) dia, 99.7% (metals basis excluding Zr), Zr nominal 3%
- Packaging25cm
- Price$89.8
- Updated2023-06-20
- Buy
- ManufacturerAlfa Aesar
- Product number042982
- Product descriptionHafnium wire, 0.5mm (0.02in) dia, 99.95% (metals basis excluding Zr), Zr nominal 3%
- Packaging100cm
- Price$78.9
- Updated2023-06-20
- Buy
- ManufacturerAlfa Aesar
- Product number000674
- Product descriptionHafnium sponge, 0.8-20mm (0.03-0.79in), 99.6% (metals basis excluding Zr), Zr nominal 3%
- Packaging50g
- Price$206
- Updated2021-12-16
- Buy
- ManufacturerAlfa Aesar
- Product number010200
- Product descriptionHafnium wire, 0.25mm (0.01in) dia, 99.97% (metals basis excluding Zr), Zr nominal 3%
- Packaging2m
- Price$178
- Updated2023-06-20
- Buy
- ManufacturerAlfa Aesar
- Product number010204
- Product descriptionHafnium crystal bar milled chips, 99.7% (metals basis excluding Zr), Zr nominal 3%
- Packaging25g
- Price$172
- Updated2022-04-27
- Buy
- ManufacturerAlfa Aesar
- Product number010201
- Product descriptionHafnium powder, -325 mesh, 99.6% (metals basis excluding Zr), Zr nominal 2-3.5%
- Packaging25g
- Price$171
- Updated2023-06-20
- Buy
- ManufacturerAlfa Aesar
- Product number013435
- Product descriptionHafnium wire, 1.57mm (0.0618in) dia, 99.7% (metals basis excluding Zr), Zr nominal 3%
- Packaging100cm
- Price$164
- Updated2023-06-20
- Buy
- ManufacturerAlfa Aesar
- Product number045104
- Product descriptionHafnium arc-cast pellet, 12mm (0.47in) dia, 99.8% (metals basis excluding Zr), Zr nominal 4.5%
- Packaging1pc
- Price$139
- Updated2023-06-20
- Buy
- ManufacturerAlfa Aesar
- Product number010793
- Product descriptionHafnium foil, 0.25mm (0.01in) thick, annealed, 99.5% (metals basis excluding Zr), Zr nominal 3%
- Packaging50x80mm
- Price$321
- Updated2023-06-20
- Buy
- ManufacturerAlfa Aesar
- Product number042982
- Product descriptionHafnium wire, 0.5mm (0.02in) dia, 99.95% (metals basis excluding Zr), Zr nominal 3%
- Packaging500cm
- Price$304
- Updated2023-06-20
- Buy
- ManufacturerAlfa Aesar
- Product number044489
- Product descriptionHafnium rod, 6.35mm (0.25in) dia, 99.9% (metals basis excluding Zr), Zr nominal 3%
- Packaging50mm
- Price$277
- Updated2023-06-20
- Buy
- ManufacturerAlfa Aesar
- Product number013305
- Product descriptionHafnium wire, 2.0mm (0.08in) dia, 99.7% (metals basis excluding Zr), Zr nominal 3%
- Packaging100cm
- Price$271
- Updated2023-06-20
- Buy
- ManufacturerAlfa Aesar
- Product number039710
- Product descriptionHafnium foil, 0.025mm (0.001in) thick, 99.5% (metals basis excluding Zr) Zr nominal 3%
- Packaging50x50mm
- Price$258
- Updated2023-06-20
- Buy
Manufacturer | Product number | Product description | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|
Alfa Aesar | 010205 | Hafnium wire, 1.0mm (0.04in) dia, 99.95% (metals basis excluding Zr), Zr nominal 3% | 100cm | $131 | 2023-06-20 | Buy |
Alfa Aesar | 039683 | Hafnium pieces, 3-12mm (0.12-0.47in), 99.9% (metals basis excluding Zr), Zr nominal 2% | 10g | $129 | 2023-06-20 | Buy |
Alfa Aesar | 010202 | Hafnium powder, -60+325 mesh, 99.6% (metals basis excluding Zr), Zr nominal 2-3.5% | 10g | $101 | 2023-06-20 | Buy |
Alfa Aesar | 013305 | Hafnium wire, 2.0mm (0.08in) dia, 99.7% (metals basis excluding Zr), Zr nominal 3% | 25cm | $89.8 | 2023-06-20 | Buy |
Alfa Aesar | 042982 | Hafnium wire, 0.5mm (0.02in) dia, 99.95% (metals basis excluding Zr), Zr nominal 3% | 100cm | $78.9 | 2023-06-20 | Buy |
Alfa Aesar | 000674 | Hafnium sponge, 0.8-20mm (0.03-0.79in), 99.6% (metals basis excluding Zr), Zr nominal 3% | 50g | $206 | 2021-12-16 | Buy |
Alfa Aesar | 010200 | Hafnium wire, 0.25mm (0.01in) dia, 99.97% (metals basis excluding Zr), Zr nominal 3% | 2m | $178 | 2023-06-20 | Buy |
Alfa Aesar | 010204 | Hafnium crystal bar milled chips, 99.7% (metals basis excluding Zr), Zr nominal 3% | 25g | $172 | 2022-04-27 | Buy |
Alfa Aesar | 010201 | Hafnium powder, -325 mesh, 99.6% (metals basis excluding Zr), Zr nominal 2-3.5% | 25g | $171 | 2023-06-20 | Buy |
Alfa Aesar | 013435 | Hafnium wire, 1.57mm (0.0618in) dia, 99.7% (metals basis excluding Zr), Zr nominal 3% | 100cm | $164 | 2023-06-20 | Buy |
Alfa Aesar | 045104 | Hafnium arc-cast pellet, 12mm (0.47in) dia, 99.8% (metals basis excluding Zr), Zr nominal 4.5% | 1pc | $139 | 2023-06-20 | Buy |
Alfa Aesar | 010793 | Hafnium foil, 0.25mm (0.01in) thick, annealed, 99.5% (metals basis excluding Zr), Zr nominal 3% | 50x80mm | $321 | 2023-06-20 | Buy |
Alfa Aesar | 042982 | Hafnium wire, 0.5mm (0.02in) dia, 99.95% (metals basis excluding Zr), Zr nominal 3% | 500cm | $304 | 2023-06-20 | Buy |
Alfa Aesar | 044489 | Hafnium rod, 6.35mm (0.25in) dia, 99.9% (metals basis excluding Zr), Zr nominal 3% | 50mm | $277 | 2023-06-20 | Buy |
Alfa Aesar | 013305 | Hafnium wire, 2.0mm (0.08in) dia, 99.7% (metals basis excluding Zr), Zr nominal 3% | 100cm | $271 | 2023-06-20 | Buy |
Alfa Aesar | 039710 | Hafnium foil, 0.025mm (0.001in) thick, 99.5% (metals basis excluding Zr) Zr nominal 3% | 50x50mm | $258 | 2023-06-20 | Buy |
Properties
Melting point :2227 °C (lit.)
Boiling point :4602 °C (lit.)
Density :13.3 g/cm3 (lit.)
storage temp. :Store at +15°C to +25°C.
solubility :soluble in HF
form :wire
Specific Gravity :13.31
color :Silver-gray
Resistivity :29.6 μΩ-cm, 0°C
Water Solubility :soluble HF; slowly reacts with conc H2SO4, aqua regia [KIR80]
Merck :13,4603
Exposure limits :ACGIH: Ceiling 2 ppm
OSHA: Ceiling 5 ppm(7 mg/m3)
NIOSH: IDLH 50 ppm; Ceiling 5 ppm(7 mg/m3) Stability :Stable. Incompatible with oxygen, sulfur, strong oxidizing agents, halogens, phosphorus, strong acids. Highly flammable.
InChIKey :VBJZVLUMGGDVMO-UHFFFAOYSA-N
CAS DataBase Reference :7440-58-6(CAS DataBase Reference)
EPA Substance Registry System :Hafnium (7440-58-6)
Boiling point :4602 °C (lit.)
Density :13.3 g/cm3 (lit.)
storage temp. :Store at +15°C to +25°C.
solubility :soluble in HF
form :wire
Specific Gravity :13.31
color :Silver-gray
Resistivity :29.6 μΩ-cm, 0°C
Water Solubility :soluble HF; slowly reacts with conc H2SO4, aqua regia [KIR80]
Merck :13,4603
Exposure limits :ACGIH: Ceiling 2 ppm
OSHA: Ceiling 5 ppm(7 mg/m3)
NIOSH: IDLH 50 ppm; Ceiling 5 ppm(7 mg/m3) Stability :Stable. Incompatible with oxygen, sulfur, strong oxidizing agents, halogens, phosphorus, strong acids. Highly flammable.
InChIKey :VBJZVLUMGGDVMO-UHFFFAOYSA-N
CAS DataBase Reference :7440-58-6(CAS DataBase Reference)
EPA Substance Registry System :Hafnium (7440-58-6)
Safety Information
Symbol(GHS): | |||||||||||||||
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Signal word: | Danger | ||||||||||||||
Hazard statements: |
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Description
Hafnium has a great affinity for absorbing slow neutrons. This attribute, along with itsstrength and resistance to corrosion, makes it superior to cadmium, which is also used formaking control rods for nuclear reactors. This use is of particular importance for the type ofnuclear reactors used aboard submarines. By moving the control rods in and out of a nuclearreactor, the fission chain reaction can be controlled as the neutrons are absorbed in the metalof the rods. The drawback to hafnium control rods is their expense: it costs approximately onemillion dollars for several dozen rods for use in a single nuclear reactor.In vacuum tubes and other applications that must have gases removed, hafnium is used asa “getter” to absorb any trace oxygen or nitrogen in the tube, thus extending the life of thevacuum tube. Hafnium’s qualities also make it ideal for filaments in light bulbs and, whenmixed with rare-earth metals, as a “sparking” misch metal. Hafnium is also used to a lesserextent as an alloying agent for several other metals, including iron, titanium, and niobium.
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