Record Display for the EPA National Library Catalog

RECORD NUMBER: 247 OF 1307

OLS Field Name OLS Field Data
Main Title Determination of Mercury in stack Gases of High SO2 Content by the Gold Amalgamation Technique.
Author Baldec, Charles ; Kal, G. William ;
CORP Author TraDet, Inc., Columbus, Ohio.
Year Published 1973
Report Number EPA-68-02-0697; R2-73-153;
Stock Number PB-220 323
Additional Subjects ( Mercury(Metal) ; Gas sampling) ; ( Air pollution ; Mercury(Metal)) ; Smelters ; Flue gases ; Combustion products ; Sulfur dioxide ; Spectrochemical analysis ; Mercury amalgams ; Particles ; Gas analysis ; Gold alloys ; Trace elements ; Atomic spectroscopy ; Errors ; Efficiency ; Air pollution detection
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB-220 323 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 121p
Abstract
Elemental mercury, present in the reducing atmosphere of exhaust flue gases from a zinc smelter, may be quantitatively determined by the gold amalgamation technique. The gas sample may be taken using a standard isokinetic stack sampling apparatus in which some of the impingers are replaced by a series of amalgamators, each containing 30 grams of gold chips. Several combinations of impingers and amalgamators were investigated to determine the optimum train configuration. Equations were derived for estimating the collection efficiency of the train from the relative distribution of mercury found on successive amalgamators. Sources of error and possible gold contamination are discussed. Analytical procedures for determining mercury concentration were studied. (Modified author abstract)