Oxide Properties

For example, olefin sulfuri2ation products (Lubrizol, 1980), dithiophosphomolybdates (Mobil, 1980), or more simply the dithiophosphates of alcohol (Shell, 1980) whose anti-oxidant properties have been announced, are used in oil formulations for their anti-wear properties. 

Its powerful oxidizing properties result from the tight binding of its valence sheU 7-orbital electrons. No commercial source is available. 

Hydrogen peroxide is used in many applications throughout a wide variety of industries. The principal use areas are shown in Table 9. Most ate based on the oxidizing properties of hydrogen peroxide. Some are derived from substitution, decomposition, or the formation of perhydrates. 

Heterogeneous Catalysis. The main discovery of the 1980s was the use of titanium sihcaUte (TS-1) a synthetic zeoHte from the ZSM family containing no aluminum and where some titanium atoms replace siUcon atoms in the crystalline system (Ti/Si = 5%) (33). This zeoHte can be obtained by the hydrolysis of a siUcate and an alkyl titanate in the presence of quaternary ammonium hydroxide followed by heating to 170°C. Mainly studies have been devoted to the stmcture of TS-1 and its behavior toward H2O2 (34). The oxidation properties of the couple H2O2/TS-I have been extensively developed in... 

Oxidizing Properties. Nitric acid is a powerful oxidizing agent (electron acceptor) that reacts violentiy with many organic materials (eg, turpentine, charcoal, and charred sawdust) (19,20). The concentrated acid may react explosively with ethanol (qv). Such oxidizing properties have had military appHcation nitric acid is used with certain organics, eg, furfuryl alcohol and aniline, as rocket propellant (see Explosives AND PROPELLANTS). 

The many industrial uses for sodium nitrite primarily are based on its oxidizing properties or its Hberation of nitrous acid in acidic solutions. 

H. E. Brown, Zinc Oxide, Properties and Applications, International Lead Zinc Organization, Inc., New York, 1976, pp. 56—59. 

Diaziridines, discovered in 1958, six years after the oxaziridines, were almost immediately realized to be structural analogs of oxaziridines. Like these they showed oxidizing properties unexpected for other classes of organic nitrogen compound. Properties in common with oxaziridines include the rearrangement to open chain isomers on heating above 100 °C (for several diaziridines), and their hydrolytic behavior in acidic media, which leads to carbonyl compounds with conservation of the hetero-hetero bond. 

Materials that demonstrate unusual reactivity with water are identified as and materials that possess oxidizing properties shall be identified by the letters Z. Other special hazard symbols may be used to identify radioactive hazards, corrosive hazards, substances that are toxic to fish, and so on. 

The oxidizing properties of positive halogen precursors have been reviewed by Filler. Compounds which have been used in steroid hydroxyl oxidations are Wbromosuccinimide Wbromoacetamide (NBA), A-bro-... 

The oxidizing properties of MnOy are utilized in the oxidation of aniline for the preparation of hydroquinone which is important as a photographic developer and also in the production of dyes and paints. 

All the anhydrous - -3 and +2 halides of iron are readily obtained, except for iron(III) iodide, where the oxidizing properties of Fe and the reducing properties of 1 lead to thermodynamic instability. It has, however, been prepared in mg quantities by the following reaction, with air and moisture rigorously excluded,... 

Flash point Flammability Explosivity Autoflammability Oxidizing properties... 

Bruce-Keller AJ, Barger SW, Moss Nl, Pham JT, Keller JN, Nath A (2001) Pro-inflammatory and pro-oxidant properties of the HIV protein Tat in a microglial cell line attenuation by 17 beta-estradiol. J Neurochem 78 1315-1324... 

In the majority of cases both the primary and the induced reactions are oxidation-reduction reactions. In such reactions the actor can have either reducing or oxidizing properties. The chemical characteristics of the inductor and acceptor are always identical and opposite to that of the actor. When the latter is a reducing agent the acceptor and inductor are oxidants and vice versa. 

El-Agamey, A., Carotenoid radical chemistry and antioxidant/pro-oxidant properties. Arch. Biochem. Biophys., 430, 37, 2004. 

Superoxide anion scavenging activity of the enzymatically synthesized poly(catechin) was evaluated. Poly(catechin), synthesized by HRP catalyst, greatly scavenged superoxide anion in a concentration-dependent manner, and almost completely scavenged at 200 p.M of a catechin unit concentration. The laccase-catalyzed synthesized poly(catechin) also showed excellent antioxidant property. Catechin showed pro-oxidant property in concentrations lower than 300 jlM. These results demonstrated that the enzymatically synthesized poly(catechin) possessed much higher potential for superoxide anion scavenging, compared with intact catechin. 

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