Alkaline Metal and Alkaline Earth Metal Salts of Di(1H-tetrazol-5-yl)Methanone (DTO): Energetic Catalysts for Ammonium Perchlorate Decomposition

To explore novel coordination complexes for promising energetic materials, alkaline metal (Na+ (1), Na+ (2), K+ (3), and Rb+ (4)) and alkaline earth metal (Mg2+ (5), Ca2+ (6), and Sr2+...

Download Full-text

Effects of inorganic salts on the degradation of 2,5-dihydroxy-[1,4]-benzoquinone as a key chromophore in pulps by hydrogen peroxide under basic conditions

Holzforschung ◽

10.1515/hf-2014-0256 ◽

2015 ◽

Vol 69 (6) ◽

pp. 685-693 ◽

Cited By ~ 1

Author(s):

Takashi Hosoya ◽

Ute Henniges ◽

Antje Potthast ◽

Thomas Rosenau

Keyword(s):

Hydrogen Peroxide ◽

Alkaline Earth ◽

Degradation Mechanism ◽

Earth Metal ◽

Kinetic Studies ◽

Metal Salts ◽

Alkaline Earth Metal ◽

Alkaline Metal ◽

Pulp Bleaching ◽

Resonance Stabilization

Abstract2,5-Dihydroxy-[1,4]-benzoquinone (DHBQ) is one of the key chromophores in cellulosics. Due to its special resonance stabilization, it is a prime survivor of bleaching treatments and its degradation is essential in pulp bleaching. The clarification of the degradation mechanism of this compound is indispensable for targeting improvements of pulp bleaching processes. Previous studies revealed that DHBQ degradation by hydrogen peroxide (H2O2) is influenced by salts. This study addresses the effects of alkaline metal salts, alkaline earth metal salts, and Al2(SO4)3on the degradation of DHBQ under simulated conditions of pulp bleaching in a peroxide stage. The degradation by excess H2O2followed first-order kinetics in the presence of alkaline metal salts and alkaline earth metal salts, which enhanced and retarded the reaction, respectively. Kinetic studies and theoretical computations provided detailed mechanistic insights: Li+, Na+, and K+stabilize several reaction intermediates by complex formation, causing the enhancement of the degradation, whereas Mg2+and Ca2+coordinate and stabilize the reactant, resulting in the observed retardation. Al2(SO4)3exhibited a strong enhancing effect, but the degradation followed second-order kinetics with regard to DHBQ, suggesting a fundamentally different degradation mechanism.

Download Full-text

Insensitive energetic compounds: alkaline earth metal salts of 5,5′-dinitramino-3,3′-methylene-1H-1,2,4-bistriazolate

New Journal of Chemistry ◽

10.1039/d0nj03773g ◽

2020 ◽

Vol 44 (44) ◽

pp. 19054-19060

Author(s):

Yanna Wang ◽

Xiaoming Yang ◽

Jie Hu ◽

Haibo Li ◽

Zhimin Li ◽

...

Keyword(s):

Energetic Materials ◽

Alkaline Earth ◽

Earth Metal ◽

Metal Salts ◽

Alkaline Earth Metal ◽

Energetic Compounds ◽

Explosive Properties

Three insensitive energetic alkaline earth metal salts based on 5,5′-dinitramino-3,3′-methylene-1H-1,2,4-bistriazolate were synthesized. All the salts exhibit explosive properties comparable to TNT, and are suggested as potential energetic materials.

Download Full-text

Alkali and alkaline earth metal salts of tetrazolone: structurally interesting and excellently thermostable

Dalton Transactions ◽

10.1039/c7dt01179b ◽

2017 ◽

Vol 46 (26) ◽

pp. 8422-8430 ◽

Cited By ~ 4

Author(s):

Piao He ◽

Le Wu ◽

Jin-Ting Wu ◽

Xin Yin ◽

Michael Gozin ◽

...

Keyword(s):

Energetic Materials ◽

Alkaline Earth ◽

Earth Metal ◽

Metal Salts ◽

Alkaline Earth Metal

Alkali and alkaline earth metal salts of tetrazolone were first reported and may be promising potential candidates of new green insensitive energetic materials.

Download Full-text

Structures of transition and alkaline earth metal salts of 5-aminonaphthalene-2-sulfonate and 6-aminonaphthalene-1, 3-disulfonate: Some unusual coordination behaviors

Journal of Chemical Crystallography ◽

10.1007/s10870-005-9063-3 ◽

2006 ◽

Vol 36 (8) ◽

pp. 487-501 ◽

Cited By ~ 6

Author(s):

Spring M. Downer ◽

Philip J. Squattrito ◽

Naima Bestaoui ◽

Abraham Clearfield

Keyword(s):

Alkaline Earth ◽

Earth Metal ◽

Metal Salts ◽

Alkaline Earth Metal

Download Full-text

Ozone-mediated nitration of benzoic acid, its alkali and alkaline-earth metal salts, ester, acid chloride, nitrile and amide with nitrogen dioxide

Journal of the Chemical Society Perkin Transactions 1 ◽

10.1039/p19940002413 ◽

1994 ◽

pp. 2413 ◽

Cited By ~ 6

Author(s):

Hitomi Suzuki ◽

Jun-Ichiro Tomaru ◽

Takashi Murashima

Keyword(s):

Benzoic Acid ◽

Nitrogen Dioxide ◽

Acid Chloride ◽

Alkaline Earth ◽

Earth Metal ◽

Metal Salts ◽

Alkaline Earth Metal

Download Full-text

Kinetic Study of the α-Tocopherol-Regeneration Reaction of Ubiquinol-10 in Methanol and Acetonitrile Solutions: Notable Effect of the Alkali and Alkaline Earth Metal Salts on the Reaction Rates

The Journal of Physical Chemistry B ◽

10.1021/jp2118086 ◽

2012 ◽

Vol 116 (8) ◽

pp. 2615-2621 ◽

Cited By ~ 8

Author(s):

Kazuo Mukai ◽

Masanori Oi ◽

Aya Ouchi ◽

Shin-ichi Nagaoka

Keyword(s):

Kinetic Study ◽

Alkaline Earth ◽

Earth Metal ◽

Reaction Rates ◽

Metal Salts ◽

Alkaline Earth Metal ◽

Notable Effect ◽

Acetonitrile Solutions

Download Full-text

Structure, stability and intramolecular interaction of M(N5)2(M = Mg, Ca, Sr and Ba) : a theoretical study

RSC Advances ◽

10.1039/c5ra00818b ◽

2015 ◽

Vol 5 (28) ◽

pp. 21823-21830 ◽

Cited By ~ 13

Author(s):

Xueli Zhang ◽

Junqing Yang ◽

Ming Lu ◽

Xuedong Gong

Keyword(s):

Energetic Materials ◽

Density Functional ◽

Alkaline Earth ◽

Theoretical Study ◽

Intramolecular Interaction ◽

Earth Metal ◽

Structure Stability ◽

Alkaline Earth Metal ◽

Functional Theory ◽

The Density Functional Theory

The potential energetic materials, alkaline earth metal complexes of the pentazole anion (M(N5)2, M = Mg2+, Ca2+, Sr2+and Ba2+), were studied using the density functional theory.

Download Full-text