SULFIDE CONCENTRATES - A SIMPLE PEARL PRE PARATION TECHNIQUE

Fusion of sulfide ores and concentrates has become as simple, easy and fast as fusion of oxide materials. The only additional requirements a re: use of an oxidant, particular arrangement of fusion mixture compon ents in the crucible, and two or three additional steps of low tempera ture heating at the beginning of the fusion process. Sulfur is quantit atively retained in the glass, X-ray intensities and accuracy are simi lar to those of oxides, crucible corrosion is nil, risk of perforation of crucibles is completely overcome.