scholarly journals A New Simple Method of Determination of Hydrochloric Acid by the Thermal Decomposition of Polyvinyl Chloride

1955 ◽  
Vol 4 (1) ◽  
pp. 16-21
Author(s):  
HISASHI KIYOTA ◽  
TOSHIO YAMAMOTO
1981 ◽  
Vol 101 (1) ◽  
pp. 72-78
Author(s):  
SHIGERU KAMETAKA ◽  
SHIZUKO TSUJI ◽  
NOBUSHIGE NISHIMOTO ◽  
SHINICH HAYASHI

2019 ◽  
Vol 140 ◽  
pp. 08002
Author(s):  
Olga Barysheva ◽  
Renat Sadykov ◽  
Yuri Khabibullin ◽  
Elizaveta Zheltukhina

Combustion of high-energy chemical fuels containing chlorine in the element structure can lead to formation in the particles of smoke of super eco toxicants—the polychlorinated dioxins and furans. The numerical experiment conducted was based on solution of the equations of chemical kinetics. The computational and theoretical researches directed to the solution of a problem of determination of parameters of combustion products of chemical fuels taking into account formation of harbingers of the polychlorinated dioxins were executed. The main data on the accepted method of determination of disequilibrium structures of products of burning the chlorine-containing chemical fuels were represented. Based on the analysis of references about mechanisms and speeds of chemical reactions of transformations of chlorine-containing connections, the kinetic model of formation of predecessors of dioxins is constructed. The carried-out calculations showed (assuming chemical balance) that process of formation of dioxins is significantly disequilibrious. The results of kinetic researches on emission of harbingers of dioxins showed the nature of the influence of different components of combustion products of chemical fuels on time for the different levels of temperatures.


2008 ◽  
Vol 6 (4) ◽  
pp. 520-525
Author(s):  
Mónica Díaz-Pérez ◽  
Manuel Aboal-Somoza ◽  
Pilar Bermejo-Barrera ◽  
Adela Bermejo-Barrera

AbstractPreliminary results of development of a direct and fast method of determination of antimony in samples of tap water using GFAAS are presented. The found levels of antimony were lower than permitted for human consumption. A mixture of Pd and Mg(NO3)2 (concentrations in the injected solution: 8.6 μg mL−1 and 5.8 μg mL−1 respectively) was used as the chemical modifier. The pyrolysis and atomization temperatures were 1000 and 1700°C, respectively and the mean analytical recovery 98.2%.


AIHAJ ◽  
1980 ◽  
Vol 41 (11) ◽  
pp. 847-850 ◽  
Author(s):  
S.K. DANGWAL ◽  
B.M. JETHANI

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