2005年6月10日 · The IR microspectroscopic study showed that the RDX-Clay mineral complex and its interactions can be detected using the FT-IR technique at a low concentration of 1000 part-per-millions. Variations in the clay's pH revealed changes in the RDX-Clay complex spectroscopic signature. These results also indicate that the interaction between the RDX ...

2020年12月10日 · The IR microspectroscopic study showed that the RDX-Clay mineral complex and its interactions can be detected using the FT-IR technique at a low concentration of 1000 part-per-millions. Variations in the clay's pH revealed changes in the RDX-Clay complex spectroscopic signature. These results also indicate that the interaction between the RDX ...

2004年9月21日 · The chemical spectroscopic signature of the RDX-clay mineral complex has been investigated by means of reflectance FT-IR micro spectroscopy. The mechanical analysis method was used to separate the clay from the other soil components. The soil was obtained from the University of Puerto Rico at Mayagüez (UPRM) campus backyard. B3LYP/6-311G** calculations performed on RDX helped to determine the ...

Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) is an energetic compound that is commonly used as a military explosive. Studies indicate that nitroamines compounds, particularly those exhibiting several NO2 groups or other electronwithdrawing substituents, may adsorb strongly and reversibly from aqueous solutions to natural clay minerals. To …

2,3,5-trinitro-1,3,5-triazine (RDX) in soils. A reference bentonite clay, contami-nated (Kolin) soil from the Louisiana Army Ammunition Plant, and two uncontaminated soils were used. The TNT isotherm for bentonite clay was described equallywell using linear, Freundlich, Langmuir and modified Langmuir models.

The IR microspectroscopic study showed that the RDX-Clay mineral complex and its interactions can be detected using the FT-IR technique at a low concentration of 1000 part-per-millions. Variations in the clay's pH revealed changes in the RDX-Clay complex spectroscopic signature. These results also indicate that the interaction between the RDX ...

separate the clay from all the other components in the soil. B3LYP/6-311G** calculations performed on the conformers of RDX helped determine its most stable conformations, their symmetry, and vibrational spectra. The IR microspectroscopic study showed that the RDX-Clay mineral complex and its interactions can be detected using the FT-IR technique.

The chemical spectroscopic signature of the RDX in clay soil environments has been investigated by means of reflectance FT-IR microspectroscopy. Soil obtained from the University of Puerto Rico at Mayagüez was treated using the textural mechanical method in order to separate the clay from all the other components in the soil. B3LYP/6-311G ...

2003年1月15日 · Clay minerals representing some of the different structural groups of layer silicates were analyzed. Kaolinite was from deposit Pugu Hills (Tanzania), dickite and chrysotile from Slovak deposits in Rákoš and Dobšiná, respectively. Two montmorillonites SAz-1 (Cheto, AZ, USA) and SCa-2 (Otay, CA, USA) were obtained from the Source Clay ...

The chemical spectroscopic signature of the RDX-clay mineral complex has been investigated by means of reflectance FT-IR micro spectroscopy. The mechanical analysis method was used to separate the clay from the other soil components. The soil was obtained from the University of Puerto Rico at Mayagüez (UPRM) campus backyard. B3LYP/6-311G** calculations performed on RDX helped to determine the ...