Fuse potassium dichromate (19) in a porcelain crucible.
test A: porcelain Crucible– A porcelain crucible was heated to a dull red color, placed on the test material, and allowed to cool to ambient temperature.
A small - handled, deep porcelain crucible used for heating and evaporating.
Study on the repeated use of the porcelain crucible and joining amount of flux by Instrument of high-frequency infrared of carbon and Sulphur
