Alumina Crucibles: High Purity 50 x 5 x 5 mm Mini Combustion Boat

One high purity Alumina combustion boats for chemcial calcining, metal casting, and ceramic sample preparation

Dimension: Length: 50mm; Width: 5 mm; Height: 5 mm

Shape: as picture

Purity: Al2O3 > 99.5%;  Fe2O3 < 0.01%

100% impervious

Density: > 3.8 g/cm3

Max. working temperature: 1750 oC or 3180 F
Capacity: ~  0.4 ml
Note: Never heat and cool faster than 5°C/min. Otherwise, the crucible may crack.
Alumina crucibles are made by casting method, which does not have precise dimensions.