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International Journal of Energetic Materials and Chemical Propulsion

Published 6 issues per year

ISSN Print: 2150-766X

ISSN Online: 2150-7678

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 0.7 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 0.7 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.1 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00016 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.18 SJR: 0.313 SNIP: 0.6 CiteScore™:: 1.6 H-Index: 16

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A SIMPLE AND SELECTIVE SPECTROPHOTOMETRIC METHOD FOR DETERMINATION OF ETHYL CENTRALITE AS STABILIZER IN DOUBLE BASE SOLID PROPELLANTS: A COMPARATIVE STUDY WITH HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY

Volume 21, Issue 4, 2022, pp. 39-50
DOI: 10.1615/IntJEnergeticMaterialsChemProp.2022041581
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ABSTRACT

In this research, a spectrophotometric determination technique was applied as a fast, validated, and sensitive method for determination of ethyl centralite (EC) in double base solid propellants (DB propellants). The proposed method is based on the separation of ethyl centralite by ultrasound-assisted extraction followed by its hydrolysis in the presence of phosphoric acid to ethyl aniline. Then, the produced ethyl aniline was coupled with diazotized p-nitro-aniline in the micellar media to form a yellow azo dye. Absorbance of color product was monitored by spectrophotometric technique at 403 nm. The effect of important parameters on the absorbance of the system was investigated and optimized. Under optimal conditions, the linear range of determination of ethyl centralite was 3-20 μg mL-1 with detection limit of 1.5 μg mL-1. The proposed method was successfully applied to the determination of ethyl centralite in DB propellants with good recoveries within 100%-102%, and relative standard deviation (RSD) less than 3.5%. According to the results obtained by high-performance liquid chromatography (HPLC) method and statistical comparison based on F- and t-tests at the 95% confidence level, there is no difference between the results of the proposed method and the HPLC. The results revealed that the developed method can be used as a simple and reliable method with high precision for the determination of ethyl centralite in DB propellants, and can be proposed as an available method in military quality control laboratories.

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