A KINETIC METHOD FOR DETERMINING THE CARB ON OXIDE IN THE AIR WITH THE SILVER COMBINATION OF THE P-SULPHAMIDOPHENOXYACETIC ACID

Authors
Citation
V. Rusu et D. Dragos, A KINETIC METHOD FOR DETERMINING THE CARB ON OXIDE IN THE AIR WITH THE SILVER COMBINATION OF THE P-SULPHAMIDOPHENOXYACETIC ACID, Revista de chimie, 45(9), 1994, pp. 791-796
Citations number
12
Categorie Soggetti
Chemistry
Journal title
ISSN journal
00347752
Volume
45
Issue
9
Year of publication
1994
Pages
791 - 796
Database
ISI
SICI code
0034-7752(1994)45:9<791:AKMFDT>2.0.ZU;2-S
Abstract
The carbon oxide reduces the alkaline solution in an equimolecular mix ture of silver nitrate, to which sodium p - sulphamidophenoxy acetate was added, forming an intensely coloured and highly stable silver sol; its light adsorbance, measured at 400 nm grows proportionally with th e samples carbon oxide content. The relation describing the reaction t ime evolution, under stirring was established, with the possibility to calculate the silver sol light adsorbance, in case of the complete ga s-reagent reaction, based on knowing the light adsorbance at a certain moment. The light adsorbance representation for the total reaction (e stablished through calculation), function of the carbon oxide content of some known samples allows tracing the standardization curve, based on which the carbon oxide concentration in the unknown samples is calc ulated. The optimum concentration range is of 5-1000 ppm CO, the error s being not in excess of 3%.