Automatic electrochemical ambient air monitor for chloride and chlorine
Abstract
An electrochemical monitoring system has been provided for determining chloride and chlorine in air at levels of from about 10-1000 parts per billion. The chloride is determined by oxidation to chlorine followed by reduction to chloride in a closed system. Chlorine is determined by direct reduction at a platinum electrode in 6 M H.sub.2 SO.sub.4 electrolyte. A fully automated system is utilized to (1) acquire and store a value corresponding to electrolyte-containing impurities, (2) subtract this value from that obtained in the presence of air, (3) generate coulometrically a standard sample of chlorine mixed with air sample, and determine it as chlorine and/or chloride, and (4) calculate, display, and store for permanent record the ratio of the signal obtained from the air sample and that obtained with the standard.
- Inventors:
-
- Oak Ridge, TN
- Issue Date:
- Research Org.:
- UNION CARBIDE CORP
- OSTI Identifier:
- 862593
- Patent Number(s):
- 3969209
- Assignee:
- United States of America as represented by United States Energy (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- W-7405-ENG-26
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- automatic; electrochemical; ambient; air; monitor; chloride; chlorine; monitoring; provided; determining; levels; 10-1000; billion; determined; oxidation; followed; reduction; closed; direct; platinum; electrode; electrolyte; automated; utilized; acquire; store; value; corresponding; electrolyte-containing; impurities; subtract; obtained; presence; generate; coulometrically; standard; sample; mixed; determine; calculate; display; permanent; record; ratio; signal; ambient air; air monitor; air sample; value corresponding; direct reduction; containing impurities; chemical monitoring; /204/324/
Citation Formats
Mueller, Theodore R. Automatic electrochemical ambient air monitor for chloride and chlorine. United States: N. p., 1976.
Web.
Mueller, Theodore R. Automatic electrochemical ambient air monitor for chloride and chlorine. United States.
Mueller, Theodore R. Tue .
"Automatic electrochemical ambient air monitor for chloride and chlorine". United States. https://www.osti.gov/servlets/purl/862593.
@article{osti_862593,
title = {Automatic electrochemical ambient air monitor for chloride and chlorine},
author = {Mueller, Theodore R},
abstractNote = {An electrochemical monitoring system has been provided for determining chloride and chlorine in air at levels of from about 10-1000 parts per billion. The chloride is determined by oxidation to chlorine followed by reduction to chloride in a closed system. Chlorine is determined by direct reduction at a platinum electrode in 6 M H.sub.2 SO.sub.4 electrolyte. A fully automated system is utilized to (1) acquire and store a value corresponding to electrolyte-containing impurities, (2) subtract this value from that obtained in the presence of air, (3) generate coulometrically a standard sample of chlorine mixed with air sample, and determine it as chlorine and/or chloride, and (4) calculate, display, and store for permanent record the ratio of the signal obtained from the air sample and that obtained with the standard.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1976},
month = {7}
}