Results 31 to 40 of about 5,548,462 (338)

Renewable production of ammonia and nitric acid

open access: yesAIChE Journal, 2020
Decarbonization of the power sector offers ammonia industry an opportunity to reduce its CO 2 emissions through sector coupling. Extending from our previous work, we propose a power-based process for ammonia and nitric acid production.
G. Wang, A. Mitsos, W. Marquardt
semanticscholar   +1 more source

Mechanical Properties of Reactive Powder Concrete (RPC) Exposed to Acidic Solutions

open access: yesTikrit Journal of Engineering Sciences, 2022
This research work includes an experimental investigation to study the mechanical properties of reactive powder concrete (RPC) exposed to acidic solutions.
Ali H. Ali, Ahmed K. Ibrahim
doaj   +1 more source

Optimizing of Synthesis of High Purity HMX Using Polyphosphoric Acid by Response Surface Method [PDF]

open access: yesIranian Journal of Chemical Engineering, 2023
1,3,5,7-tetranitro-1,3,5,7-tetraazacyclooctane (HMX) is one of the most powerful explosives of which the purity may have a significant effect on increasing the performance of rocket engines. In this research, the synthesis of high purity HMX is presented
M.A. Zarei   +5 more
doaj   +1 more source

Periodic current oscillations of zinc in nitric acid solutions [PDF]

open access: yesJournal of the Serbian Chemical Society, 2008
This paper presents current oscillations of a Zn anode in solutions of nitric acid and potassium dichromate. The effects of the nitric acid concentration were investigated.
Crisan Florin, Salló Ervin
doaj   +1 more source

Enhanced digestion of complex cosmetic matrices for analysis of As, Hg, Cd, Cr, Ni, and Pb using triton X-100

open access: yesMethodsX, 2021
A suitable optimized digestion method for lipsticks and powders for the analysis of As, Hg, Cd, Cr, Ni and Pb by Hydride Generation Atomic Absorption Spectrophotometry (HG-AAS), Cold Vapor Atomic Absorption Spectrophotometry (CV-AAS) and Flame Atomic ...
Devika Maharaj   +3 more
doaj   +1 more source

AN EXPERIMENTAL INVESTIGATION FOR THE SYNTHESIS OF OXALIC ACID BY NITRIC ACID OXIDATION OF DATES FRUIT AND SYRUP

open access: yesJournal of Engineering, 2003
An experimental investigation was conducted to study the various parameters affecting the production of oxalic acid by the action of concentrated nitric acid on carbohydrates. Two feedstocks were studied, viz., dates fruit and dates syrup.
Harith N. Al-Rawi   +2 more
doaj   +1 more source

Rapid analysis of minerals in oysters using microwave decomposition and inductively coupled plasma atomic emission spectrometry

open access: yesAquaculture Reports, 2021
Oysters are rich in nutrients and can be cultivated in oceans; therefore they have attracted considerable interest as a food source. In this study, we investigated the rapid analysis of multiple minerals in oysters using microwave decomposition combined ...
Tsuyoshi Yoda   +2 more
doaj   +1 more source

ANALYSIS OF NITRIC ACID [PDF]

open access: yesSchool Science and Mathematics, 1905
n ...
openaire   +2 more sources

Evaluation of Acid Digestion Procedures to Estimate Mineral Contents in Materials from Animal Trials [PDF]

open access: yesAsian-Australasian Journal of Animal Sciences, 2015
Rigorously standardized laboratory protocols are essential for meaningful comparison of data from multiple sites. Considering that interactions of minerals with organic matrices may vary depending on the material nature, there could be peculiar demands ...
M. N. N. Palma   +3 more
doaj   +1 more source

Effect of Nitric Acid Concentrations on Synthesis and Stability of Maghemite Nanoparticles Suspension

open access: yesThe Scientific World Journal, 2014
Maghemite (γ-Fe2O3) nanoparticles have been synthesized using a chemical coprecipitation method at different nitric acid concentrations as an oxidizing agent.
Irwan Nurdin   +3 more
doaj   +1 more source

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