Acta Phys. -Chim. Sin. ›› 1999, Vol. 15 ›› Issue (11): 997-1000.doi: 10.3866/PKU.WHXB19991108

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Effect of Trace Additive on the Oxidation Process of Solid Tin in a Steady lncrease of Temperature

He Xin-Xing, Chen Rong, Zhang Qi-Yun   

  1. College of Chemistry and Molecular Engineering,Peking University,Beijing 100871
  • Received:1999-01-13 Revised:1999-04-06 Published:1999-11-15
  • Contact: Chen Rong

Abstract:

The oxidation process of pure tin and tin samples doped by Ga, S and Cu with different particle sizes has been investigated by DTA,TG and XRD methods. Results revealed that 0.1%addition of Ga markedly influenced the oxidation process of tin. In the heating process, SnO which presents as a more compact film formed on the surface of the particles protected the particles from oxidation to certain extent. In the other cases, tin oxidized into SnO2 directively. S addition deteriorated the oxidation process and lowered the oxidation temperature.

Key words: Oxidation process, Sn, Trace additives