-The porcelain is uniform in thickness and dense which allows stable mechanical strength and little permeability.
-Comes with a loose-fitting lid that allows gases to escape during sample heating.
-Recommended for chemists, metallurgists and others involved in high temperature work demanding free results.
-Good resistance to acids of all kinds, even at boiling point, with the exception of hydrofluoric acid.
-The crucibles are glazed on the inside and outside surface except for the outside bottom and rim.
-Porcelain crucibles should be in drying box or muffle furnace over 30 minutes and place in drying column in reserve.

Specification:
Material: Porcelain
Max. Working Temperature: 1000C
Capacity: 20ml
Max. Capacity: 21ml
Cup Top Outer Diameter: 38mm (1.50")
Cup Height: 34mm (1.34")
Lid Inner Diameter: 40mm (1.57")
Lid Outer Diameter: 44mm (1.73")
Height (with Lid): 46mm (1.81")