Record Display for the EPA National Library Catalog

RECORD NUMBER: 2 OF 11

OLS Field Name OLS Field Data
Main Title Determination of Hydrocyanic Acid and Free Cyanide in Aqueous Solution.
Author Broderius, Steven J. ;
CORP Author Environmental Research Lab.-Duluth, MN.
Year Published 1981
Report Number EPA-600/J-81-613;
Stock Number PB83-182964
Additional Subjects Hydrocyanic acid ; Cyanides ; Chemical analysis ; Solutions ; Concentration(Composition) ; Ions ; Water analysis ; Water pollution ; Colorimetric analysis ; Reprints ; Water pollution detection
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB83-182964 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 8p
Abstract
Microgram-per-liter concentrations of HCN in aqueous solutions were determined directly by two methods: bubbling compressed air through a solution to displace a small quantity of HCN, which was collected in a glass bead concentration column, or allowing some HCN to diffuse from an enclosed solution into dilute NaOH in a dish suspended above the solution. The separated and concentrated cyanide was determined colorimetrically. These procedures for determining HCN in various waters and wastewaters were accurate, precise, and not susceptible to common interfering substances.