Alternatively, hand-held graphite crucibles can be used.
2.
Graphite crucibles were loaded with a charge of derbies and solid recycle scrap.
3.
The metal biscuits were melted in a graphite crucible and poured into a mold.
4.
NpC 2 is formed from heating NpO 2 in a graphite crucible at 2660 2800 �C.
5.
He also refined the use of graphite crucibles, refractory vessels used for melting metallic minerals.
6.
Heating to in a graphite crucible could then melt the zinc, which could be drawn off.
7.
Furthermore, another specialised crucible which was made at the same time was that of a graphite crucible from southern Germany.
8.
A heat-resistant graphite crucible he invented was widely used in the production of iron and steel during the Mexican-American War.
9.
Sometimes thorium is extracted by electrolysis of a fluoride in a mixture of sodium and potassium chloride at 700 800 �C in a graphite crucible.
10.
The use of graphite as a refractory material began before 1900 with the graphite crucible used to hold molten metal; this is now a minor part of refractories.