- Description
- Product Details
- Additional Information
Description
One of the most corrosion resistant materials available, exhibits resistance to acid attack comparable to glass.
Tantalum is one of the most corrosion resistant materials available, exhibiting resistance to acid attack comparable to glass and platinum. This, combined with high-temperature strength makes tantalum an excellent material for laboratory crucibles, vessels and tubing.
Tantalum exhibits high resistance to boiling aqua regia and displays almost complete immunity to attack by most acids including sulfuric, hydrochloric and nitric. It is completely resistant to molten metals such as magnesium, potassium, lithium and sodium to 1100 ̊ C. Tantalum can be heated up to 2800 ̊ C in inert or oxygen-free atmospheres. We offer a standard line of crucibles and covers from 5 ml to 1000 ml and can also supply custom vessels and tubing.
Product Details
Additional Information
CORROSION RESISTANCE OF TANTALUM
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SUBSTANCE
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REACTION | |
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Acetic Acid
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20-392° (68-738°F), all concentrations: No attack | |
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Air or Oxygen
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At room temperature: practically stable / Above 600°C (1112°F): formation of protective surfaces of Ta oxides | |
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Aqueous Ammonia
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Practically no attack | |
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Aqua Regia
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Cold and hot: practically no attack | |
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Carbon (Graphite)
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At high temperatures: carbide formation | |
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Carbon Dioxide
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Above 1200°C (2912°F): oxidation | |
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Carbon Monoxide
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At red heat: reaction (absorption of C and O) / In high vacuum above 1400°C: formation of CO | |
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Chromic Chloride Acid
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20-100°C (68-212°F), concentrated: no attack | |
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Aqueous Caustic
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Cold: practically stable / Hot: noticeable attack | |
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Molten Caustic
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Stable | |
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Chlorine
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at 250°C (464°F): beginning attack / Above 450°C (842°F): violent reaction | |
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Ferric Chloride
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19°C (66°F) Boiling, 5-30% concentration: no attack | |
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Hydrocarbons
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Above 800-1000°C (1472-1832°F): carbide formation / Above 1400°C (2552°F): complete carburizing | |
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Hydrochloric Acid
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Cold and Hot: no attack | |
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Hydrofluoric Acid
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Strong Attack | |
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Hydrofluoric and Nitric Acid
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Rapid dissolution | |
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Hydrogen
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Above 300-400°C (572-752°F): formation of hydride / Above 1000°C (1832°F): very slight solubility of hydrogen / In high vacuum above 600-700°C (1112-1292°F): evolution of hydrogen | |
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Hydrogen Peroxide
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Concentrated: good resistance to attack | |
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Hydrogen Sulfide
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At red heat: sulfide formation | |
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Nitric Acid
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Cold and Hot: no attack | |
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Nitrogen
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Up to 150°C (302°F): no attack / Above 800°C (1472°F): nitride formation | |
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Oxalic Acid
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20-96°C (68-205°F), saturated: no attack | |
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Phosphoric Acid
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85% concentration, 145-210°C (293-410°F): no attack | |
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Potassium Hydroxide
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110°C (230°F), 5% concentration: no attack | |
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Sodium Hydroxide
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100°C (230°F), 5% concentration: no attack 100°C (230°F), 40% concentration: rapid attack | |
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Steam
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At red heat: rapid oxidation | |
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Sulfur Dioxide
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Up to 300°C (572°F): stable | |
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Sulfuric Acid
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Cold and hot: no attack | |
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Molten Metals:
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Sodium
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Up to 1200°C (2192°F): resistant | |
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Magnesium
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Up to 1150°C (2102°F): resistant | |
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Lithium, Potassium, Lead
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Up to 1000°C (1832°F): resistant | |
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Bismuth
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Up to 900°C (1652°F): resistant | |
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Mercury
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Up to 600°C (1112°F): resistant | |
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Zinc
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Up to 500°C (932°F): resistant | |
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Gallium
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Up to 450°C (842°F): resistant | |
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Refractory Oxides:
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Alumina
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Up to 1900°C (3452°F): stable | |
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Beryllia
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Up to 1900°C (2912°F): stable | |
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Magnesia
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Up to 1800°C (3272°F): stable | |
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Zirconia
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Up to 1600°C (2912°F): stable | |
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Thoria
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Up to 1900°C (3452°F): stable | |
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*This table has been created with the best current knowledge. No legal claim can be derived from this information. *