Effect of competitive acido complex formation of the solubility of binary chlorides in MCl<Subscript>2</Subscript>-M′Cl<Subscript>2</Subscript>-H<Subscript>2</Subscript>O systems

The solubility of d-metal halides in MCl₂-M′Cl₂-H₂O systems with competitive complex formation at 25°C was discussed. The role of complex formation and hydration was traced. As the stability constants become closer to each other, the salting-in regions in the crystallization braches of both chlorides disappear. Original Russian Text I.V. Zamyatin, M.Yu. Skripkin, 2007, published in Zhurnal Obshchei Khimii, 2007, Vol. 77, No. 2, pp. 252–259.     

Influence of Interactions in Solutions on the Solid Phase Formation in Ternary Water-Salt Systems

Russian Journal of General Chemistry - The influence of ionic interactions in ternary aqueous and aqueous-organic solutions of metal halides on the structure of the solid phases in equilibrium with...     

Determination of solutions density by the dilatometric titration method

A new approach to the determination of solutions density based on dilatometric titration data was developed. The results of testing this method by the example of dilution of a sodium chloride solution are presented. The method allows density of solutions to be determined with a high accuracy (±1×10^?5 g cm^?3) in a wide concentration range in the course of a single experiment.     

Stationary setup for identifying explosives using the tagged neutron method

The results of using a stationary setup for detecting and identifying explosives using the tagged neutron method (or associated particle imaging (API) method) have been presented. The source of 14.1-MeV tagged neutron beams is an ING-27 portable neutron generator made by VNIIA (Moscow). It contains an embedded 64-pixel silicon α detector with double-sided strip readout developed by the Joint Institute for Nuclear Research (JINR). The setup was tested for the identification of more than 30 explosives.     

Solubility in the Ternary System Water-Cadmium Bromide-Copper(II) Bromide

Solubility in the system CuBr₂-CdBr₂-H₂O at 25°C was determined by the method of isothermal saturation. The obtained data were examined from the viewpoint of competitive formation of acido complexes in aqueous solutions.     

DViN-2 stationary inspection complex

A DViN-2 stationary inspection complex has been designed and manufactured for identifying hidden explosives and drugs. The identification of hidden substances is based on the method of tagged neutrons. The source of the tagged neutron beam, which has an energy of 14.1 MeV produced in the reaction d + t → α + n, is a portable neutron generator with a built-in 9-channel silicon α detector. The DViN-2 makes it possible to identify hidden explosives and drugs with a mass of from 100 g to 50 kg in objects with dimensions from 50 to 400 mm in all three directions. The results of 76 experiments testify to the high efficiency of the DViN-2 in regards to identifying hidden explosives and drugs and it has a rather low probability of false actuations: the probability of identifying explosives and drugs is 94%, and that of false alarms rate is 3%. The time it takes to identify hidden substances, depending on their mass and the thickness of the shielding material layer, is 3–7 min for an average neutron beam intensity into a solid angle of 4π of 2 × 10⁷s^?1.     

Measurement of Angular Distributions of Gamma Rays from the Inelastic Scattering of 14.1-MeV Neutrons by Carbon and Oxygen Nuclei

The results obtained by measuring the angular and energy distributions of gamma rays originating from the inelastic scattering of 14.1-MeV neutrons by carbon and oxygen nuclei are presented. The measurements in question were performed by the tagged-neutron method in a beam of an ING-27 standard portable neutron generator. The angular distributions of gamma rays emitted by the 2⁺ state of ¹²С at 4.43 MeVand the 3^? state of ¹⁶O at 6.13 MeV were obtained.     

DViN—Stationary setup for identification of explosives

A stationary system for the identification of hidden explosives was developed and constructed at the Joint Institute for Nuclear Research (JINR). The results of the examination of the system, as well as the operation principle of the system and design of the main elements are presented. The text was submitted by the authors in English.