Statistical Optimization and Selective Separation of RDX and HMX Explosives by Using Binary Solvent Mixtures Containing Ethyl Acetate and Water

Damiri, Sajjad; Pouretedal, Hamid Reza; Panahi, Hadi; Dris, Abdollah

doi:10.22211/cejem/68912

Cited by 9 publications

(2 citation statements)

References 9 publications

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“…[8]. However, quite a number of solubilities in non‐aqueous solvents have been determined [35–37] and these can be converted into water‐(dry)‐solvent partition coefficients through log Sw =−3.60 [34]. There is also GLC data [38] and a substantial amount of HPLC retention data [23, 31, 39] that have been reported.…”

Section: Resultsmentioning

confidence: 99%

Descriptors for High‐Energy Nitro Compounds; Estimation of Thermodynamic, Physicochemical and Environmental Properties

Abraham

Acree

Liu

2020

Propellants Explo Pyrotec

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We have used a variety of physicochemical systems, including water‐solvent partitions, solubility in non‐aqueous solvents, and HPLC and gas chromatographic retentions to obtain descriptors for nitro compounds and high energy compounds. These descriptors can then be used to predict a wide range of other physicochemical properties as well as thermodynamic and environmental properties. We illustrate the latter by predictions of the vapor pressure of sublimation, the enthalpy of sublimation and the heat capacity of sublimation at 298.15 K, and predictions of human skin permeability from water. With respect to the obtained descriptors, the most startling finding is that cyclic high energy compounds, with no ‘active’ hydrogen atom, have a substantial ‘hydrogen bond’ acidity. We suggest that this is due to electron‐deficient ring systems that act as Lewis acids.

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Section: Resultsmentioning

confidence: 99%

Descriptors for High‐Energy Nitro Compounds; Estimation of Thermodynamic, Physicochemical and Environmental Properties

Abraham

Acree

Liu

2020

Propellants Explo Pyrotec

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“…There are several methods in DOE technique for example central composite design (CCD). This method provides high quality predictions in investigation linear, quadratic and interaction effects of variables that are effective on a process [18,19].…”

Section: Introductionmentioning

confidence: 99%

Statistical optimization for determination of trace amounts of RDX in matrix of HMX using GC-ECD

2019

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1,3,5,7-Tetranitro-1,3,5,7-tetrazocane (HMX) is one of the most powerful military explosives that is produced by means of Bechmann method. Simultaneous, 1,3,5-rinitroperhydro-1,3,5-triazine (RDX) as a by-product is produced in this method that affect on the purity and sensitivity of HMX. Using a simple and fast technique is important for determination of trace amounts of RDX in the HMX matrix. The technique of gas chromatography-electron capture detector (GC-ECD) was proposed for these reasons. Because the presence of several parameters in the proposed technique, the experimental design methods of factorial and central composite were used for the experiments of screening and optimization, respectively. The parameters of oven programming, injection volume, injection temperature, carrier gas flow rate, and detector temperature were used in experiments of screening. The analysis of variance and Pareto plots showed that the injection temperature and carrier gas flow rate must be optimized among the parameters. After the screening and optimization of the studied parameters, the selected conditions were oven programming 10 °C min −1 , injection volume 1 μL, injection temperature 250 °C, carrier gas (N 2 ) flow rate 3 mL min −1 , and detector temperature 300 °C. The calibration curve and detection limit of the optimized method were 10-90 and 1.8 mg L −1 , respectively, of RDX in matrix of HMX. The relative standard deviation of the measurement was 1.89%. Finally, the RDX recovery percentages in HMX matrix in the three spiked samples were also calculated.

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A Solubility Comparison of Cyclotetramethylenetetranitramine (HMX) and Potential Mock-HMX Candidates in Solvents Relevant to Slurry Formulating Polymer-Bonded Materials

et al. 2020

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Statistical Optimization and Selective Separation of RDX and HMX Explosives by Using Binary Solvent Mixtures Containing Ethyl Acetate and Water

Cited by 9 publications

References 9 publications

Descriptors for High‐Energy Nitro Compounds; Estimation of Thermodynamic, Physicochemical and Environmental Properties

Descriptors for High‐Energy Nitro Compounds; Estimation of Thermodynamic, Physicochemical and Environmental Properties

Statistical optimization for determination of trace amounts of RDX in matrix of HMX using GC-ECD

A Solubility Comparison of Cyclotetramethylenetetranitramine (HMX) and Potential Mock-HMX Candidates in Solvents Relevant to Slurry Formulating Polymer-Bonded Materials

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