Automatic Coulometric Titration of Sulfuric Acid in Chromium Plating Solutions

Abstract

No specific chemical analysis method exists in the literature for the offline or online determination of sulfuric acid in chromium plating solutions by automatic coulometer titration. A method is presented here that provides somewhat acceptable analysis and monitoring of the sulfuric acid in this chromium plating process. Due to a subjective data reduction process, online application of this method is unacceptable. The optimum operating range of sulfinic acid is 2.40- 3.10 g/l and the resulting precisions by this method are in the range of 0.10-0.25 g/I. These resulting offline automatic titration precisions are nearly equal to the presently used automatic ion chromatography precisions which is still the best available method to date.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1991
Accession Number
ADA420010

Entities

People

  • Samuel Sopok

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Acids
  • Analytical Chemistry
  • Analytical Chemistry Techniques
  • Automatic
  • Chemical Analysis
  • Chemical Reactions
  • Chemistry
  • Chromic Acid
  • Chromium
  • Chromium Compounds
  • Data Reduction
  • Experimental Data
  • Materials
  • Physical Properties
  • Precipitation
  • Standards
  • Titration

Fields of Study

  • Environmental science

Readers

  • Analytical Chemistry
  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Surface Engineering/Surface Coating Technology.