Record Display for the EPA National Library Catalog

RECORD NUMBER: 6 OF 18

Main Title Determination of molecular hydrogen sulfide /
Author Hoover, Thomas B., ; Lauch, Richard P.
CORP Author National Environmental Research Center, Cincinnati, Ohio.
Publisher National Environmental Research Center, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1975
Report Number EPA-660/4-75-001; EPA-ROAP-24ALE-03
Stock Number PB-242 824
OCLC Number 01492879
Subjects Hydrogen sulfide ; Water--Analysis ; Water chemistry ; Hydrogen sulphide
Additional Subjects Potentiometric analysis ; Hydrogen sulfide ; Water analysis ; Water pollution detection ; Dissolved gases ; Chemical analysis ; Gas analysis ; Performance(Engineering) ; Electrodes ; Sparging ; Membranes
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9101E1OO.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJBD ARCHIVE EPA 660-4-75-001 Headquarters Library/Washington,DC 10/22/2012
EJBD  EPA 660-4-75-001 Headquarters Library/Washington,DC 12/23/2014
ELBD RPS EPA 660-4-75-001 repository copy AWBERC Library/Cincinnati,OH 03/28/2018
ELBD  EPA 660-4-75-001 AWBERC Library/Cincinnati,OH 12/27/2018
NTIS  PB-240 700 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
NTIS  PB-242 824 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vi, 39 pages : illustrations ; 27 cm.
Abstract
The gas sparging technique and a new gas-sensing electrode were evaluated for the determination of dissolved molecular hydrogen sulfide at environmentally significant concentrations in water. From the sparging experiments approximate coefficients were obtained for the distribution of hydrogen sulfide between nitrogen and distilled water, seawater, or municipal sewage effluent. In the latter medium the volatility of hydrogen sulfide was very much less than predicted from the pH-total sulfide relationship. The electrode, consisting of various semipermeable membranes, buffered electrolyte filling solution, silver-silver sulfide crystal sensor, and lanthanum fluoride internal reference electrode, gave a generally Nernstian response to more than 0.1 mg/l of molecular hydrogen sulfide. Various sources of the anomalous behavior were considered. The electrode is recommended for in situ measurements of molecular hydrogen sulfide at concentrations greater than 0.1 mg/l. More work is needed to make it useful at lower concentrations.
Notes
"Program element 1BA027; ROAP 16ADN, Task 38." Includes bibliographical references (pages 37-39).