Hypergolic propellants based on hydrogen peroxide and organic compounds: historical aspect and current state

2018 ◽  
Vol 67 (11) ◽  
pp. 1943-1954 ◽  
Author(s):  
Sh. L. Guseinov ◽  
S. G. Fedorov ◽  
V. A. Kosykh ◽  
P. A. Storozhenko
Keyword(s):  
Hydrogen Peroxide ◽  
Organic Compounds ◽  
Historical Aspect ◽  
Current State ◽  
Hypergolic Propellants

Destruction of Pollutants and Microorganisms in Water by UV Light and Hydrogen Peroxide

1992 ◽  
Vol 27 (1) ◽  
pp. 57-68 ◽  
Author(s):  
D.W. Sundstrom ◽  
B.A. Weir ◽  
T. A. Barber ◽  
H. E. Klei
Keyword(s):  
Hydrogen Peroxide ◽  
Organic Compounds ◽  
Chemical Structure ◽  
Uv Light ◽  
Liquid Films ◽  
Strong Interactions ◽  
Order Kinetic ◽  
E Coli ◽  
Order Kinetic Model ◽  
Catalyzed Oxidation

Abstract This project investigated the destruction of organic compounds and microorganisms in water by ultraviolet catalyzed oxidation using hydrogen peroxide as the oxidizing agent. The combination of UV light and hydrogen peroxide was effective in decomposing all of the organic compounds studied. The rates of destruction increased with increasing peroxide concentration and UV light intensity, and were highly dependent on chemical structure. The destruction of mixtures of organic compounds showed strong interactions between reacting components. The inactivation of E. coli and B. subtilis spores by UV light and/or hydrogen peroxide was studied in flat plate reactors. By using thin liquid films, the combination of UV light and peroxide greatly increased the rates of inactivation of both microorganisms. The results were correlated by a mixed second order kinetic model.

scholarly journals The indictment on the Charter of criminal procedure through the prism of the modern criminal process

2019 ◽  
pp. 157-162
Author(s):  
Евгений Рябков ◽  
Evgeniy Ryabkov ◽  
Алексей Зайцев ◽  
Aleksey Zaycev
Keyword(s):  
19Th Century ◽  
Criminal Procedure ◽  
Regional Level ◽  
Criminal Cases ◽  
Criminal Process ◽  
Historical Aspect ◽  
Legal Proceedings ◽  
Current State ◽  
Points Of View ◽  
The 19Th Century

The article deals with the historical aspect of the requirements to the indictment in the Russian legal proceedings in the 19th century, analyzes the points of view of leading scientists in modern realities, draws Parallels of continuity and determines the patterns in the development of the criminal process. The article also analyzes the current state of the return of criminal cases by courts at the regional level on the grounds of violations of criminal procedure legislation in the preparation of indictments.

Photocatalysed Oxidation of Toxic Organics

1987 ◽  
Vol 19 (3-4) ◽  
pp. 381-390 ◽  
Author(s):  
M. Brett Borup ◽  
E. Joe Middlebrooks
Keyword(s):  
Hydrogen Peroxide ◽  
Ultraviolet Radiation ◽  
Organic Compounds ◽  
Hydroxyl Radicals ◽  
Reaction Rate ◽  
Oxidation Process ◽  
Dimethyl Phthalate ◽  
First Order ◽  
Toxic Organics ◽  
Catalyzed Oxidation

The feasibility of treating water contaminated by two toxic organic compounds with an ultraviolet light catalyzed oxidation process using hydrogen peroxide as an oxidant is investigated. In this process hydrogen peroxide is decomposed by ultraviolet radiation producing hydroxyl radicals. The hydroxyl radicals will then oxidize organic compounds via a complex chain of radical reactions. Tests showed that this photooxidation process could successfully remove isophorone and dimethyl phthalate from contaminated waters. A reaction rate expression which adequately describes the process was developed. The reaction rate was found to be first order with respect to hydrogen peroxide concentration, zero order with respect to organic concentration and a function of ultraviolet radiation intensity. The reaction did not exhibit autocatalytic characteristics.

Microanalytical Determination of Bromine, Chlorine, and Iodine by Oxygen Flask Combustion

1965 ◽  
Vol 48 (4) ◽  
pp. 709-717
Author(s):  
Al Steyermark
Keyword(s):  
Hydrogen Peroxide ◽  
Organic Compounds ◽  
Iodometric Titration ◽  
Hydrazine Sulfate

Abstract Thirty collaborators participated in a study of the use of oxygen flask combustion for the microdeterminations of bromine, chlorine, and iodine in organic compounds. Generally, there was little difference in the precision of the various methods. Argentometric titration gave better results than did iodometric titration only in the case of bromine. The use of hydrazine sulfate gave better results in the case of iodine than when it was omitted; the same held true for hydrogen peroxide. It is recommended that the study be continued.

Catalytic action of goethite in the oxidation of 2-chlorophenols with hydrogen peroxide

2007 ◽  
Vol 55 (12) ◽  
pp. 101-106 ◽  
Author(s):  
Y.-T. Lin ◽  
M.-C. Lu
Keyword(s):  
Hydrogen Peroxide ◽  
Particle Size ◽  
Catalytic Oxidation ◽  
Organic Compounds ◽  
Oxidation Rate ◽  
Catalytic Action ◽  
Main Mechanism ◽  
Ferrous Ions

The use of goethite and hydrogen peroxide was recently found to effectively oxidise organic compounds. This research was to investigate the effect of adsorption, pH, Fe2 +  and Fe3 +  on 2-CP oxidation. Results indicated that 2-CP can be decomposed with hydrogen peroxide catalysed by goethite and the oxidation rate increased with decreasing goethite particle size. The optimum oxidation rate was observed at the pH below 3.0.Addition of Fe2 +  and Fe3 +  can enhance the catalytic oxidation rate of 2-CP very efficiently. The main mechanism of goethite catalysing hydrogen peroxide to oxidise 2-CP may be due to the catalysis of ferrous ions and goethite surface.

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