LinkMejor Porcelain Crucible Cup 300ml for Foundry Melting Casting Refining 2pcs

-The porcelain is uniform in thickness and dense which allows stable mechanical strength and little permeability.-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: 1000CCapacity: 300mlMax. Capacity: 355ml Top Inner Diameter: 90.5mm (3.56")Top Outer Diameter: 96mm (3.78")Height: 88mm (3.46")