Some properties of organic peroxides

Egerton, Alfred Charles; Emte, W.; Minkoff, G. J.

doi:10.1039/df9511000278

Cited by 35 publications

(15 citation statements)

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“…MAD are quite low, indicating the goodness-of-fit and the predictivity. The relatively lower performance of the model for peroxy acyl nitrates and peracids can be ascribed to the very limited number of molecules in the data set and possibly also to experimental uncertainty, as decomposition can be a problem for this type of molecules (Egerton et al, 1951;Kacmarek et al, 1978). The bad performance for peroxides, for which the number of data points seems acceptable, is more difficult to understand.…”

Section: Including Functional Groups and Local Structure Effects Evamentioning

confidence: 99%

EVAPORATION: a new vapour pressure estimation methodfor organic molecules including non-additivity and intramolecular interactions

2011

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We present EVAPORATION (Estimation of VApour Pressure of ORganics, Accounting for Temperature, Intramolecular, and Non-additivity effects), a method to predict (subcooled) liquid pure compound vapour pressure p 0 of organic molecules that requires only molecular structure as input. The method is applicable to zero-, monoand polyfunctional molecules. A simple formula to describe log 10 p 0 (T ) is employed, that takes into account both a wide temperature dependence and the non-additivity of functional groups. In order to match the recent data on functionalised diacids an empirical modification to the method was introduced. Contributions due to carbon skeleton, functional groups, and intramolecular interaction between groups are included. Molecules typically originating from oxidation of biogenic molecules are within the scope of this method: aldehydes, ketones, alcohols, ethers, esters, nitrates, acids, peroxides, hydroperoxides, peroxy acyl nitrates and peracids. Therefore the method is especially suited to describe compounds forming secondary organic aerosol (SOA).

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Section: Including Functional Groups and Local Structure Effects Evamentioning

confidence: 99%

EVAPORATION: a new vapour pressure estimation methodfor organic molecules including non-additivity and intramolecular interactions

2011

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“…•OH Carbon-centered radicals (R•), alkoxyl radicals (RO•), peroxyl radicals (ROO•), and organic hydroperoxides (ROOH) are heterogenous molecule classes, occasionally produced by ROS such as •OH. Although, these molecules can be clearly assigned to their respec-tive class, however within each class, molecules can still significantly differ in relevant physicochemical properties due to their different origins [166][167][168]. Hence, it is not feasible, within the frame of this review, to summarize typical methods for detecting all members of each class.…”

Section: Reactive Oxygen Species Analytical Technique Probes Referencementioning

confidence: 99%

Photo-Oxidation of Therapeutic Protein Formulations: From Radical Formation to Analytical Techniques

et al. 2021

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UV and ambient light-induced modifications and related degradation of therapeutic proteins are observed during manufacturing and storage. Therefore, to ensure product quality, protein formulations need to be analyzed with respect to photo-degradation processes and eventually protected from light exposure. This task usually demands the application and combination of various analytical methods. This review addresses analytical aspects of investigating photo-oxidation products and related mediators such as reactive oxygen species generated via UV and ambient light with well-established and novel techniques.

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“…The comparatively large yields of peroxide isolated at -80" C eliminate the possibility that much of the peroxide is formed by the same mechanism which is responsible for the peroxide which is obtained by passing, through a trap cooled in liquid air, the products of an electric discharge through water vapour, or of the interaction of H atoms with molecular oxygen (see ref. 15 for details). These processes yield no peroxide at -80" C. graphy of the explosions 16 has shown that the passage of the flame down the tube is associated with several irreproducible features, while the duration of the glow is reproducible.…”

Section: Hydrogen Peroxide Formation In Explosions Of Hydrogen and Of...mentioning

confidence: 99%

Spark-ignited explosions in chilled vessels. Part 3.—Methane + oxygen explosions, and the mechanism of hydrogen peroxide formation in H₂and CH₄explosions

Everett¹,

Minkoff²

1956

Trans. Faraday Soc.

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The chilling technique described earlier (part 1) has been used in an attempt to isolate methyl hydroperoxide from methane + oxygen explosions. Considerable evidence was obtained that a trace of this compound may be present in the products, but the results were not easy to reproduce. It is concluded that while CH300H. is not an important intermediate in the slow oxidation of methane, it may occur in processes of very short duration, such as explosions. or "knock" in engines. The formation of hydrogen peroxide has also been examined, and complicated relationships have been obtained. The mechanism of formation of hydrogen peroxide in explosions both of hydrogen and of methane is discussed in detail. The general indications are that gas-phase processes in the cooling gases lead to peroxide formation at the higher pressures, while reactions involving the surface become more important with decreasing pressure. The role of Pyrex, ice and boric-acid-coatings is also considered.The participation of the radical CH3COO. in combustion processes has been viewed with disfavour by several authors 1 on the grounds of its instability when formed in the association reaction CH3. + 0 2 -+ CH3OW.

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Some properties of organic peroxides

Cited by 35 publications

References 0 publications

EVAPORATION: a new vapour pressure estimation methodfor organic molecules including non-additivity and intramolecular interactions

EVAPORATION: a new vapour pressure estimation methodfor organic molecules including non-additivity and intramolecular interactions

Photo-Oxidation of Therapeutic Protein Formulations: From Radical Formation to Analytical Techniques

Spark-ignited explosions in chilled vessels. Part 3.—Methane + oxygen explosions, and the mechanism of hydrogen peroxide formation in H₂and CH₄explosions

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Some properties of organic peroxides

Cited by 35 publications

References 0 publications

EVAPORATION: a new vapour pressure estimation methodfor organic molecules including non-additivity and intramolecular interactions

EVAPORATION: a new vapour pressure estimation methodfor organic molecules including non-additivity and intramolecular interactions

Photo-Oxidation of Therapeutic Protein Formulations: From Radical Formation to Analytical Techniques

Spark-ignited explosions in chilled vessels. Part 3.—Methane + oxygen explosions, and the mechanism of hydrogen peroxide formation in H2and CH4explosions

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Spark-ignited explosions in chilled vessels. Part 3.—Methane + oxygen explosions, and the mechanism of hydrogen peroxide formation in H₂and CH₄explosions