The rapid micro-analytical determination of carbon and hydrogen in organic compounds

The Analyst ◽  
1948 ◽  
Vol 73 (871) ◽  
pp. 541 ◽  
Author(s):  
A. F. Colson
Keyword(s):  
Organic Compounds ◽  
Analytical Determination

The Polarographic Determination of Organic Accelerators of Vulcanization

1941 ◽  
Vol 14 (4) ◽  
pp. 914-919 ◽  
Author(s):  
Gerard Proske
Keyword(s):  
Double Bond ◽  
Organic Compounds ◽  
Analytical Determination ◽  
Polarographic Method ◽  
Rubber Industry ◽  
Vulcanized Rubber ◽  
Color Reactions ◽  
Analytical Utility ◽  
Kjeldahl Nitrogen

Abstract In spite of the great importance which vulcanization accelerators have attained in the rubber industry, there is still an almost complete lack of analytical methods, both for determining the accelerator contents of rubber mixtures and for identifying accelerators in vulcanized rubber. Apart from the wholly unsatisfactory and uncertain method of deciding the existence of organic accelerators in vulcanized rubber by a Kjeldahl nitrogen determination, there is little of value in the literature. Twiss and Martin have described a few qualitative reactions of accelerators. Recently Shimada described some color reactions of accelerators with cobalt oleate, but the analytical utility of these reactions is very doubtful. Of far more promise than these is the polarographic method, the value of which in the analytical determination of a series of important accelerators was proved in an investigation which will be described in the present paper. It had already been proved in earlier polarographic investigations that organic compounds containing nitrogen with a double bond can be reduced electrolytically, provided groups with a tendency to rupture are close to the double bond. Shikata and Tachi have shown this to be true of azobenzene, and Winkel and Proske of dimethylquinoxaline.

Analytical Determination of Torch Characteristics of Rotary Kiln Burners

2020 ◽  
Vol 50 (5) ◽  
pp. 347-350
Author(s):  
G. M. Druzhinin ◽  
N. B. Loshkarev ◽  
E. D. Solntseva ◽  
I. M. Khammatov
Keyword(s):  
Rotary Kiln ◽  
Analytical Determination
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