𝔖 Bobbio Scriptorium
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The preparation of ultra pure lead oxide

✍ Scribed by W. Kwestroo; A. Huizing


Book ID
118905514
Publisher
Elsevier Science
Year
1965
Weight
240 KB
Volume
27
Category
Article
ISSN
0022-1902

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A new induction melting furnace with a cold-copper crucible has been designed and constructed using ultra-high vacuum technology. The main chamber can be evacuated to 6.7 Γ‚ 10 Γ€8 Pa as the base pressure. The furnace can melt high-purity iron of 10 kg, at most, within 300 s. The total pressure become