Structure organic peroxy compounds

Peroxytitanium species have been detected during the production of hydrogen peroxide from organic hydroperoxides and Ti(SO)4)2- Alkaline earth peroxy-titanates, e.g. Ca3[Ti(02)4(0H)2]H20, have been prepared by the addition of Ca(N03)2 to a solution of titanium hydroxide in ammoniacal hydrogen peroxide the composition and structures of the compounds were established by thermal analysis i.r. and n.m.r. spectroscopy, and X-ray diffraction, their thermal stabilities decrease in the series Ba > Sr > Ca. 

Although some comparatively simple peroxy radicals of tropospheric importance can be readily generated and studied in laboratory systems, the majority are difficult to generate independently from isomeric species. Furthermore, the extreme diversity of emitted organic compounds implies the production of many hundreds of structurally different peroxy radicals which will never realistically be studied, but for which the rates and products of key reactions may need to be estimated. The main aims of the work presented in this report were ... 

It has been speculated that aqueous solutions of aromatic amines can be oxidized by organic radicals, but there are no actual data on reaction rates. Based on a study of reaction rate data for compounds with structures similar to 3,3 -dichlorobenzidine, an estimate of the half-life of aromatic amines in water is approximately 100 days, assuming a peroxy radical concentration of 10 mole/L in simlit, oxygenated water (EPA 1975). Based on the oxidation rates of similar compounds, the direct oxidation of 3,3 -dichlorobenzidine by singlet oxygen in solution may be treated as a first-order reaction, to arrive at an estimated reaction constant of <4xlOVmole-hour (Mabey et al. 1982). The oxidation rate constant with... 

Organic Peroxide (NFPA 43B) Any organic compound having a double oxygen or peroxy (-0-0-) group in its chemical structure. 

In general, peroxides exhibit low toxicity. However, some are moderately toxic. Their irritant action on skin and eyes vary widely. For example. Methyl ethyl ketone (MEK) peroxide is a severe eye irritant, whereas lauroyl peroxide is innocuous to eyes and skin and is nontoxic. As peroxides are a wide class of compounds with several possible organic moieties held by peroxy linkage, the relationship of toxicity with structure cannot be generalized. Also the toxicity of solvents or diluents should be borne in mind when handling commercial peroxide solutions. 

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