Relative permittivity of monocomponent and binary solutions of N2O5 in liquid CO2 and their activity in nitration of cellulose

Guskov, Alexey A.; Kuchurov, Ilya V.; Zlotin, Sergei G.

doi:10.1134/s1990793115080059

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…[164] At the first step, HNO 3 was pumped intoapressure vessel with ac ooling jacket that contained P 2 O 5 or oleum (H 2 SO 4 ·SO 3 )a tÀ25 8Ca nd approximately 10.0 MPa. [164,168,169] Other nitration agents, for example, an HNO 3 /Ac 2 O( 1:1t o1 :5) mixture, can also be used in liquid or scCO 2 media for cellulose nitration. The best yield of 6 (91 %) was achieved with as mall excess (10 %) of N 2 O 5 in the presence of NaF as additive to bind the HNO 3 formed duringt he reaction.…”

Section: O-nitrationreactionsmentioning

confidence: 99%

“…), NC was formed with a Nc ontent of 11.0-13.8 wt %( Scheme 34). [164,168,169] Other nitration agents, for example, an HNO 3 /Ac 2 O( 1:1t o1 :5) mixture, can also be used in liquid or scCO 2 media for cellulose nitration. [170] Nevertheless,t he dense CO 2 /N 2 O 5 or dense CO 2 / N 2 O 5 /100 %H NO 3 systems are preferable from an environmental point of view as the only byproduct in this case is an easyto-recover HNO 3 .T he obtained resultsa re of practical importance if we take into account that the NC is al arge-capacity product used in industrial and military powders, [156] sometypes of membranes, [171] paints, lacquers, varnishes, and celluloid.…”

Section: O-nitrationreactionsmentioning

confidence: 99%

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Prospective Symbiosis of Green Chemistry and Energetic Materials

et al. 2017

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A global increase in environmental pollution demands the development of new "cleaner" chemical processes. Among urgent improvements, the replacement of traditional hydrocarbon-derived toxic organic solvents with neoteric solvents less harmful for the environment is one of the most vital issues. As a result of the favorable combination of their unique properties, ionic liquids (ILs), dense gases, and supercritical fluids (SCFs) have gained considerable attention as suitable green chemistry media for the preparation and modification of important chemical compounds and materials. In particular, they have a significant potential in a specific and very important area of research associated with the manufacture and processing of high-energy materials (HEMs). These large-scale manufacturing processes, in which hazardous chemicals and extreme conditions are used, produce a huge amount of hard-to-dispose-of waste. Furthermore, they are risky to staff, and any improvements that would reduce the fire and explosion risks of the corresponding processes are highly desirable. In this Review, useful applications of almost nonflammable ILs, dense gases, and SCFs (first of all, CO ) for nitration and other reactions used for manufacturing HEMs are considered. Recent advances in the field of energetic (oxygen-balanced and hypergolic) ILs are summarized. Significant attention is paid to the SCF-based micronization techniques, which improve the energetic performance of HEMs through an efficient control of the morphology and particle size distribution of the HEM fine particles, and to useful applications of SCFs in HEM processing that makes them less hazardous.

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Section: O-nitrationreactionsmentioning

confidence: 99%

Section: O-nitrationreactionsmentioning

confidence: 99%

Prospective Symbiosis of Green Chemistry and Energetic Materials

et al. 2017

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Dielectric Constant of Mixtures of Carbon Dioxide and n-Dodecane Between 283 K and 343 K

Sedrez

Sánchez

Silva³

et al. 2020

Int J Thermophys

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Nitro compounds as the core structures of promising energetic materials and versatile reagents for organic synthesis

Zlotin¹,

Далингер²,

Махова³

et al. 2020

Russ. Chem. Rev.

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This review addresses some promising areas of chemistry of nitro compounds extensively developed in recent years in Russia (particularly at the N.D.Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences) and worldwide. The most important results in the synthesis of novel energetic N-, C- and O-nitro compounds are summarized. New environmentally friendly approaches to the preparation of known compounds of this series, used as components of energetic compositions, are considered. Methods for selective transformations of various nitro compounds to valuable products of organic synthesis, primarily biologically active products and their precursors, are systematically analyzed. The bibliography includes 446 references.

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Relative permittivity of monocomponent and binary solutions of N2O5 in liquid CO2 and their activity in nitration of cellulose

Cited by 4 publications

References 10 publications

Prospective Symbiosis of Green Chemistry and Energetic Materials

Prospective Symbiosis of Green Chemistry and Energetic Materials

Dielectric Constant of Mixtures of Carbon Dioxide and n-Dodecane Between 283 K and 343 K

Nitro compounds as the core structures of promising energetic materials and versatile reagents for organic synthesis

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