Accession Number:

AD0477235

Title:

ELECTROCHEMICAL STUDIES IN THE SYNTHESIS OF N-F COMPOUNDS.

Descriptive Note:

Summary rept. 1 Jan 63-31 Dec 65,

Corporate Author:

TRACOR INC AUSTIN TX

Personal Author(s):

Report Date:

1966-01-25

Pagination or Media Count:

182.0

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

Subject Categories:

  • Inorganic Chemistry
  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE