Accession Number : ADD006609

Title :   Magnesium anodize Bath Control.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Menke,Joseph T

Report Date : 30 Mar 1979

Pagination or Media Count : 13

Abstract : An analytical method to determine and control the chemical composition and concentration of a magnesium anodizing solution consisting of three chemicals, sodium dichromate, ammonium bifluoride and phosphoric aicd, such as in Chemical Treatment No. 17 of Dow Chemical Company, for example. Automatic pH titration is used to determine the amount of ammonium bifluoride (NH4HF2) and phosphoric acid (H3PO4) concentration at the same time and the concentration of sodium dichromate (Na2Cr2O7 2H2O) is determined separately by the thiosulfate titration technique. (Author)

Descriptors :   *Patent applications, *Chemical composition, *Anodic coatings, *Anodic polarization, *Control, *Baths, *Magnesium compounds, Concentration(Chemistry), Chemical analysis, Phosphoric acids, Fluorides, Sodium compounds, Chromates, Sulfates, Ammonium compounds

Subject Categories : Inorganic Chemistry
      Physical Chemistry
      Polymer Chemistry
      Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE