Publisher's Synopsis
Excerpt from A Study of the Pearce-Low Method for the Determination of Tin in Ores: A Thesis
I. Introduction. Many methods have been suggested for the determination of tin in ores. Among the gravimetric methods are the potassium.cyanide, the sulphur-sodium.carbonate fusion and the electrolytic methods. In the potassium cyanide method the purified ore is fused with potassium cyanide forming a button of tin, which is weighed. The sulphur-sodium.carbonate fusion changes the tin to soluble sodium sulpho-stannate, from which it is precipitated by acidulation with hydrochloric acid and weighed as stannic oxide. Tin is determined electrolytically by depositing from the hot oxalate solution acidified with oxalic acid.
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