Gas Analysis by Means of Detector Tubes. Part 7. Rapid Method for the Determination of Ethylene

Abstract

A mixed solution of ammonium molybdate and palladium sulfate was sorbed onto silica gel particles which were dried in vacuum to prepare a gas detection material which was then loaded into a thin glass tube to make the detector tube. Using a gas sampler and running a 10 cc gas sample through the tube in 40 seconds or 100 cc in 400 seconds, ethylene concentrations in the range 0.05-1.2 percent and 0.002-0.12 percent can be determined within a few seconds. The effects of various parameters on the length of the colored layer of the detector tube were studied, and direct reading concentration and temperature correction tables were constructed. Precision studies showed the reproducibility to be adequate for practical application.

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Document Details

Document Type
Technical Report
Publication Date
Jul 24, 1969
Accession Number
AD0857874

Entities

People

  • Tetsuzo Kitagawa
  • Yoshitaka Kobayashi

Organizations

  • United States Army Biological Warfare Laboratories

Tags

Communities of Interest

  • Counter IED

DTIC Thesaurus Topics

  • Acetylenes
  • Alkenes
  • Alkynes
  • Detection
  • Detectors
  • Ethylenes
  • Explosions
  • Explosives
  • Flow Rate
  • Gels
  • Hydrocarbons
  • Materials
  • Precision
  • Silica Gels
  • Silicon Dioxide
  • Thick Walls

Readers

  • Analytical Chemistry
  • Thermal Physics or Thermal Science.