نتایج جستجو برای: hexamethylenetetramine bromine
تعداد نتایج: 2569 فیلتر نتایج به سال:
1. An excretion balance study was performed following i.p. administration of 4-bromoaniline (50 mg kg(-1)) to bile-cannulated rats, using bromine-detected ((79/81)Br) ICPMS for quantification. Approximately 90% of the dose was recovered in urine (68.9 ± 3.6%) and bile (21.4 ± 1.4%) by 48 h post-administration. 2. HPLC-ICPMS ((79/81)Br) was used to selectively detect and profile the major urinar...
Mixed iodine-bromine perovskites used in solar cells undergo below a critical temperature an intrinsic demixing into phases with different compositions. In addition, under illumination they show nucleation of iodine-rich phase. We predict from thermodynamic considerations that mixed like $\mathrm{MAPb}{({\mathrm{I}}_{1\ensuremath{-}x}{\mathrm{Br}}_{x})}_{3}$ the interplay these effects can lead...
Bromine complexing agents (BCA) are used to improve the safety of aqueous bromine electrolytes versus outgassing in electrolytes. In this work, cycling performance hydrogen-bromine redox flow battery cells with 1-ethylpyridin-1-ium bromide ([C2Py]Br) as BCA a electrolyte theoretical capacity 179.6 A h L?1 is investigated for first time. The leads increased ohmic overvoltages. One cause drop can...
A number of methods are available for the quantitative estimation of cellulose in plant materials and have been reviewed by Doree (1933). Almost all of them are based upon the original procedure of Cross & Bevan (1903), who used chlorine gas for the removal of lignin as 'lignone chloride' followed by hot sodium sulphite extraction. Since then Jenkins (1930) and Norman & Jenkins (1933) have prop...
The springtime depletion of tropospheric ozone in the Arctic is known to be caused by active halogen photochemistry resulting from halogen atom precursors emitted from snow, ice, or aerosol surfaces. The role of bromine in driving ozone depletion events (ODEs) has been generally accepted, but much less is known about the role of chlorine radicals in ozone depletion chemistry. While the potentia...
Hydrogen-bromine (H2-Br2) redox flow batteries (RFBs) have gained a lot of interest due to their advantages in mitigating the performance shortcomings conventional zinc-bromine and vanadium batteries. Various carbon materials been tested H2-Br2 RFBs as bromine electrodes. However, comparative study among different has not reported literature. This work reports, for first time, an evaluation pap...
Introduction Conclusions References Tables Figures ◭ ◮ ◭ ◮ Back Close Full Screen / Esc Abstract Introduction Conclusions References Tables Figures ◭ ◮ ◭ ◮ Back Close Full Screen / Esc Abstract Near-total depletions of ozone have been observed in the Arctic spring since the mid 1980s. The autocatalytic cycles involving reactive halogens are now recognized to be of main importance for Ozone Depl...
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