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Tantalum Crucibles - Low Form - 20 mL to 55 mL
Tantalum Crucibles - Low Form - 20 mL to 55 mL

Tantalum Crucibles - Low Form - 20 mL to 55 mL

isoSPEC

  • 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.

     Tantalum Crucibles - Low Form - 20 mL to 55 mL

     

  • Product Details + -
    Tantalum is corrosion resistant, due to a tenaciously adherent oxide film akin to the entire family of passive, reactive metals. The metal has gained acceptance for use in electronics, missile technology, the chemical industry and the medical field. Tantalum is immune to attack by many acids and salt solutions. It is, however, subject to hydrogen embrittlement in alkaline solutions. It is used to fabricate heat exchangers, reaction vessels, bayonet heaters, thermo wells, surgical implants and radiation shielding. Tantalum should not be used in air at temperatures above about 300°C because of severe oxidation.
  • Additional Information + -

    CORROSION RESISTANCE OF TANTALUM

    Tantalum's resistance to corrosion by many materials is exemplified in the following Corrosion Resistance Table.
     
    SUBSTANCE
      REACTION

    Acetic Acid
      20-392° (68-738°F), all concentrations: No attack
    Air or Oxygen
      At room temperature: practically stable   /   Above 600°C (1112°F): formation of protective surfaces of Ta oxides
    Aqueous Ammonia
      Practically no attack
    Aqua Regia
      Cold and hot: practically no attack
    Carbon (Graphite)
      At high temperatures: carbide formation

    Carbon Dioxide
      Above 1200°C (2912°F): oxidation
    Carbon Monoxide
      At red heat: reaction (absorption of C and O)   /   In high vacuum above 1400°C: formation of CO
    Chromic Chloride Acid
      20-100°C (68-212°F), concentrated: no attack
    Aqueous Caustic
      Cold: practically stable   /   Hot: noticeable attack
    Molten Caustic
      Stable

    Chlorine
      at 250°C (464°F): beginning attack   /   Above 450°C (842°F): violent reaction
    Ferric Chloride
      19°C (66°F) Boiling, 5-30% concentration: no attack
    Hydrocarbons
      Above 800-1000°C (1472-1832°F): carbide formation   /   Above 1400°C (2552°F): complete carburizing
    Hydrochloric Acid
      Cold and Hot: no attack
    Hydrofluoric Acid
      Strong Attack

    Hydrofluoric and Nitric Acid
      Rapid dissolution
    Hydrogen
      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
    Hydrogen Peroxide
      Concentrated: good resistance to attack
    Hydrogen Sulfide
      At red heat: sulfide formation
    Nitric Acid
      Cold and Hot: no attack

    Nitrogen
      Up to 150°C (302°F): no attack   /   Above 800°C (1472°F): nitride formation
    Oxalic Acid
      20-96°C (68-205°F), saturated: no attack
    Phosphoric Acid
      85% concentration, 145-210°C (293-410°F): no attack
    Potassium Hydroxide
      110°C (230°F), 5% concentration: no attack
    Sodium Hydroxide
      100°C (230°F), 5% concentration: no attack 100°C (230°F), 40% concentration: rapid attack

    Steam
      At red heat: rapid oxidation
    Sulfur Dioxide
      Up to 300°C (572°F): stable
    Sulfuric Acid
      Cold and hot: no attack

    Molten Metals:
       
    Sodium
      Up to 1200°C (2192°F): resistant
    Magnesium
      Up to 1150°C (2102°F): resistant
    Lithium, Potassium, Lead
      Up to 1000°C (1832°F): resistant
    Bismuth
      Up to 900°C (1652°F): resistant
    Mercury
      Up to 600°C (1112°F): resistant
    Zinc
      Up to 500°C (932°F): resistant

    Gallium
      Up to 450°C (842°F): resistant
    Refractory Oxides:
       
    Alumina
      Up to 1900°C (3452°F): stable
    Beryllia
      Up to 1900°C (2912°F): stable
    Magnesia
      Up to 1800°C (3272°F): stable
    Zirconia
      Up to 1600°C (2912°F): stable
    Thoria
      Up to 1900°C (3452°F): stable

    *This table has been created with the best current knowledge. No legal claim can be derived from this information. *

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.

 Tantalum Crucibles - Low Form - 20 mL to 55 mL

 

Tantalum is corrosion resistant, due to a tenaciously adherent oxide film akin to the entire family of passive, reactive metals. The metal has gained acceptance for use in electronics, missile technology, the chemical industry and the medical field. Tantalum is immune to attack by many acids and salt solutions. It is, however, subject to hydrogen embrittlement in alkaline solutions. It is used to fabricate heat exchangers, reaction vessels, bayonet heaters, thermo wells, surgical implants and radiation shielding. Tantalum should not be used in air at temperatures above about 300°C because of severe oxidation.

CORROSION RESISTANCE OF TANTALUM

Tantalum's resistance to corrosion by many materials is exemplified in the following Corrosion Resistance Table.
 
SUBSTANCE
  REACTION

Acetic Acid
  20-392° (68-738°F), all concentrations: No attack
Air or Oxygen
  At room temperature: practically stable   /   Above 600°C (1112°F): formation of protective surfaces of Ta oxides
Aqueous Ammonia
  Practically no attack
Aqua Regia
  Cold and hot: practically no attack
Carbon (Graphite)
  At high temperatures: carbide formation

Carbon Dioxide
  Above 1200°C (2912°F): oxidation
Carbon Monoxide
  At red heat: reaction (absorption of C and O)   /   In high vacuum above 1400°C: formation of CO
Chromic Chloride Acid
  20-100°C (68-212°F), concentrated: no attack
Aqueous Caustic
  Cold: practically stable   /   Hot: noticeable attack
Molten Caustic
  Stable

Chlorine
  at 250°C (464°F): beginning attack   /   Above 450°C (842°F): violent reaction
Ferric Chloride
  19°C (66°F) Boiling, 5-30% concentration: no attack
Hydrocarbons
  Above 800-1000°C (1472-1832°F): carbide formation   /   Above 1400°C (2552°F): complete carburizing
Hydrochloric Acid
  Cold and Hot: no attack
Hydrofluoric Acid
  Strong Attack

Hydrofluoric and Nitric Acid
  Rapid dissolution
Hydrogen
  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
Hydrogen Peroxide
  Concentrated: good resistance to attack
Hydrogen Sulfide
  At red heat: sulfide formation
Nitric Acid
  Cold and Hot: no attack

Nitrogen
  Up to 150°C (302°F): no attack   /   Above 800°C (1472°F): nitride formation
Oxalic Acid
  20-96°C (68-205°F), saturated: no attack
Phosphoric Acid
  85% concentration, 145-210°C (293-410°F): no attack
Potassium Hydroxide
  110°C (230°F), 5% concentration: no attack
Sodium Hydroxide
  100°C (230°F), 5% concentration: no attack 100°C (230°F), 40% concentration: rapid attack

Steam
  At red heat: rapid oxidation
Sulfur Dioxide
  Up to 300°C (572°F): stable
Sulfuric Acid
  Cold and hot: no attack

Molten Metals:
   
Sodium
  Up to 1200°C (2192°F): resistant
Magnesium
  Up to 1150°C (2102°F): resistant
Lithium, Potassium, Lead
  Up to 1000°C (1832°F): resistant
Bismuth
  Up to 900°C (1652°F): resistant
Mercury
  Up to 600°C (1112°F): resistant
Zinc
  Up to 500°C (932°F): resistant

Gallium
  Up to 450°C (842°F): resistant
Refractory Oxides:
   
Alumina
  Up to 1900°C (3452°F): stable
Beryllia
  Up to 1900°C (2912°F): stable
Magnesia
  Up to 1800°C (3272°F): stable
Zirconia
  Up to 1600°C (2912°F): stable
Thoria
  Up to 1900°C (3452°F): stable

*This table has been created with the best current knowledge. No legal claim can be derived from this information. *

Tantalum Crucibles - Low Form - 20 mL to 55 mL

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