ELECTROCHEMICAL STUDIES IN THE SYNTHESIS OF N-F COMPOUNDS.
Abstract
Electrochemical investigations were performed to determine if the anodic fluorination of NH4(+) in hydrogen fluoride proceeds by an electrochemical stepwise mechanism to produce partially fluorinated cationic intermediate species such as NH3F(+), NH2F2(+), etc. The behavior of 26 metals and alloys investigated as possibly inert materials for anode construction can be divided into three classes: those which dissolve rapidly in HF under anodic bias, those which are relatively inert but form a nonconducting surface coating, and those which are relatively inert but maintain conductivity through the surfaces. Only nickel, platinum, Monel, Incoloy 800, Inconel 600, and Ni-Span-C 902 were found to be in the latter or useful class. Nickel and Monel anodes commonly dissolved at rates accounting for 10 to 50% of the current passed. Traces of water are effective in passivating nickel and Monel anodes, resulting in an order-of-magnitude decrease in the anodic dissolution rate. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 25, 1966
- Accession Number
- AD0477235
Entities
People
- Larry G. Spears
Organizations
- Tracor