Images are for guidance only and might not represent the final product.
Formula: Al₂O₃
Form: Crucible
Material: Aluminum Oxide
CAS Number: 1344-28-1
Commodity: Ceramics
Purity: 99.8%

Alumina Point Bottom Crucible

Alumina Point Bottom Crucible is engineered from high-purity alumina ceramic, offering exceptional thermal stability, chemical inertness, and mechanical strength for high-temperature processing. The pointed base design enables efficient collection of molten or precipitated material, ensuring optimal sample recovery and minimizing residual waste. This crucible excels in metallurgical analysis, advanced ceramics processing, and catalyst research, where precise thermal control and contamination-free environments are paramount. Common uses include calibrating thermocouples through eutectic point determination, conducting high-purity alloy synthesis, and facilitating controlled crystallization in material science studies. Its resilience against aggressive molten metals, slag, and corrosive chemicals allows it to maintain structural integrity over repeated heating cycles. In research and industrial innovation, Alumina Point Bottom Crucible provides a reliable vessel for precise, contamination-free processing, enabling breakthroughs in high-temperature chemistry and materials engineering.
each

We are collecting your products, please wait!...

Shipping restrictions and charges
may apply for some hazardous materials.

Tolerances

Point Bottom
Outer Diameter ±10%
External Height of Cylinder ±10%
External Height Overall ±10%
Internal Height Overall ±10%
Internal Diameter at Top ±10%
Outer Diameter Bottom ±10%

Material Properties for Ceramics

Chemical Resistance
Element Value
Acids - concentrated Good
Acids - dilute Good
Alkalis Good
Halogens Good
Metals Good
Electrical Properties
Element Value
Dielectric constant 9-10.1
Dielectric strength( kV mm⁻¹ ) Oct-35
Volume resistivity( Ohmcm ) >10¹⁴@25
Physical Properties
Element Value
Apparent porosity( % ) 0
Water absorption - saturation( % ) 0
Density( gcm⁻³ ) 3.9
Thermal Properties
Element Value
Melting point( C ) 2100
Upper continuous use temperature( C ) 1700
Specific heat( J K⁻¹ kg⁻¹ ) 850-900@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 26-35@20°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 8@20-1000°C
Mechanical Properties
Element Value
Tensile modulus( GPa ) 300-400
Hardness - Knoop( kgf mm⁻² ) 2100
Hardness - Vickers( kgf mm⁻² ) 1500-1650
Shear strength( MPa ) 330
Tensile strength( MPa ) 260-300
Pultrusions
Element Value
Compressive strength( MPa ) 2200-2600

Can't find what you're looking for? For customized options

Other Customers Purchased
  1. Starting at $194.00

    each
    Discounts applied for volume purchases
    View Product
  2. Starting at $199.00

    each
    Discounts applied for volume purchases
    View Product
  3. Starting at $193.00

    each
    Discounts applied for volume purchases
    View Product
  4. Supalox N5003G Alumina Powder Grade: Supalox N5003G
    Formula: Al₂O₃
    Percentage Purity: 99.999%
    Particle Size D10: 0.3µmµm
    Particle Size D50: 0.45µmµm
    Particle Size D90: 0.6µmµm
    Weight: 10000g
    Phase: Gamma
    Colour: White
    CAS Number: 1344-28-1
    UOM Code: 166-247-28

    Starting at $198.00

    each
    Discounts applied for volume purchases
    View Product
  5. Starting at $196.00

    each
    Discounts applied for volume purchases
    View Product
  6. Supalox N5003 Alumina Powder Grade: Supalox N5003
    Formula: Al₂O₃
    Percentage Purity: 99.999%
    Particle Size D10: 0.3µmµm
    Particle Size D50: 0.45µmµm
    Particle Size D90: 0.6µmµm
    Weight: 10000g
    Phase: Alpha
    Colour: White
    CAS Number: 1344-28-1
    UOM Code: 175-103-97

    Starting at $198.00

    each
    Discounts applied for volume purchases
    View Product