CORROSION STUDIES IN MOLTEN ALKALI CARBONATES. PART 1. SILVER METAL

Abstract

The corrosion of Ag in the molten ternary eutectic mixture of Li2CO3, Na2CO3 and K2CO3 over the 600900 C temperature range was investigated by the weight loss technique. A limited but finite Ag solubility is noted for non- faradaic or noelectrical-load type measurements. With an anodic current imposed, a solubility of Ag that correl-ATES WELL WITH THE FARADAIC PREDICTIONS IS FOUND. The thermodynamic method is applied to predict the saturation solubility of Ag+ ions in carbonate melts. While the assumption of solution of Ag as the non-oxidized metal is not ruled out, the view is advanced that dissolution observed on the non-faradaic corrosion experiments is most probably due to the presence of an oxidizing agent, such as oxygen, dissolved in small amounts in the molten carbonates.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1962
Accession Number
AD0289005

Entities

People

  • E. Neuenschwander
  • G. J. Janz

Organizations

  • Rensselaer Polytechnic Institute

Tags

Communities of Interest

  • Counter WMD
  • Weapons Technologies

DTIC Thesaurus Topics

  • Body Weight
  • Chemical Reactions
  • Chemistry
  • Current Density
  • Dissociation
  • Free Energy
  • Gases
  • Government Procurement
  • High Temperature
  • Liquid Phases
  • Mass Transfer
  • Materials
  • Measurement
  • Military Research
  • Mixtures
  • New York
  • Thermodynamic Properties

Fields of Study

  • Materials science

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies