Various aliphatic hydrocarbons and the side chains of aromatic hydrocarbons were chlorinated in subcritical carbon tetrachloride. Chlorination of aromatic compounds including 1,4-disubstituted benzenes was investigated. Ketones and sulfones were stable under the employed conditions. Sulfoxides w...

Mesona blumes polysaccharide (MBP), a primary active component extracted from Mesona blumes, has a number of bioactivities. Nevertheless, hepatoprotective activity of MBP has been rarely reported. The purpose of this study is to investigate hepatoprotective effects of MBP on acute liver injury i...

The hydrometallurgical recovery of metal values from sulfide concentrates, such as chalcopyrite, enargite, and sphalerite, typically generates elemental sulfur in the oxidative leaching processes. The main disadvantage of the generation of sulfur is that it retards or hampers the efficiency of t...

Chlorine monofluoride reacts with SCl4 and SeCl4 to give the corresponding tetrafluorides, with SeO2 it yields SeOF2 and with excess ClF, SeF4. The behaviour of the tetrafluorides, tetrachlorides, dioxides, and oxydifluorides of sulphur, selenium and tellurium with ClF are compared.

Sulfur mustard (SM) is a chemical warfare agent that was applied in a series of military conflicts and still poses a severe threat to civilians and military personnel. Although the cellular and molecular mechanisms of SM toxicity are still not fully understood, oxidative stress has been consider...

Scheme of isotopically enriched SF6 to elemental sulfur with orthorhombic modification conversion is offered. This scheme includes SF6 reduction to Li2S by using lithium. The yield of isotopically enriched sulfur is not less than 97% with chemical purity not less than 99.9%. The results which sh...

A key component in the atmospheric leaching of metal sulfides is the oxidation of sulfide to either elemental sulfur or hexavalent sulfur. The final oxidation state of sulfur significantly influences the economic viability of a leaching process because of its effects on oxygen consumption, acid ...

Carbon tetrachloride (CT), a chlorinated organic compound widely used in the chemical industry during the 20th century, is nowadays a ubiquitous contaminant in groundwater and in situ technologies for its destruction are required. In this work, the degradation of CT by the alkaline activation of...

Mineral-like matrix Nax(Ca/Sr)1-2xNdxWO4 (x = 0, 0.1 and 0.2) for radwaste is proposed. Powder samples of complex tungstates have been synthesized by coprecipitation from aqueous solutions of Na, Ca, Sr, Nd salts. Crystallographic characteristics of compounds have been calculated and a monotonou...

In this work, we report the synthesis of SrWO4 (SWO) and Ce2(WO4)3 (CWO) phases, based on the ethylenediaminetetraacetic–citrate complexing method. All samples were characterized by thermogravimetric analysis, X-ray diffraction and electron microscopy to identify the structure and the morpholog...

Spark Plasma Sintering has been used to obtain first ever fine-grained SrWO4 and NaNd(WO4)2 ceramics with the scheelite structure and high density (95.8–99%) that are promising as materials for nuclear waste immobilization. It has been demonstrated that the densification intensity in tungstates...

SrWO4, SrMoO4, Y2WO6 and Y2Mo3O12 nanoparticles has been synthesized via a facile sonochemical route. The samples obtained have been characterized using powder XRD and TEM. The surface area and surface charge of the nanoparticles have been determined from BET adsorption isotherm of N2 and zeta p...

Rod-likestrontium tungstate nanostructures have been successfully prepared via the co-precipitation process by using Sr(Sal)2 (Sal = salicylidene) and sodium tungstate dehydrate (Na2WO4·2H2O) as starting materials. The as-prepared rod-like nanostructures were characterized by X-ray diffraction ...

Europium doped strontium meta-silicate (namely SrSiO3:Eu3+) phosphor was prepared by a high temperature solid state reaction method. The sintered SrSiO3:Eu3+ phosphor possesses a monoclinic structure by the XRD. Energy dispersive X-ray spectrum (EDS) confirms the presence of elements in the desi...

The objective of this study is to present a detailed report related to the synthesis and characterization of strontium substituted hydroxyapatites. Based on this purpose, hydroxyapatite (HAp) bioceramics with different amounts of strontium (e.g., 0, 0.45, 0.90, 1.35, 1.80 and 2.25 at.%) were pre...

In this study a premixed strontium-containing calcium phosphate bone cement for the application in osteoporotic bone defects has been developed and characterised regarding its material and in vitro properties as well as minimally invasive applicability in balloon kyphoplasty. Strontium was intro...

When an explosive detonates or a propellant or flare burns, consumption of the energetic filler should be complete but rarely is, especially in the presence of large amounts of non-combustible materials. Herein we examine three types of perchlorate-containing devices to estimate their potential ...

For the first time the structure of the complex formed between N-allylamide of monensin A (M-AM2) and divalent cation (Sr2+) has been studied by X-ray crystallography and FT-IR spectroscopy. The crystal structure of this complex contains one Sr2+ cation coordinated by six O atoms of M-AM2 molecu...

In a quest of search for a new burning rate modifier for composite propellant, strontium titanate (SrTiO3), a perovskite oxide has been chosen for evaluation in a composite propellant formulation based on its other catalytic applications. Initially, SrTiO3 was characterized for particle size, mo...

The use of adsorbents for the preparative separation of several high-boiling compounds is of practical interest. The choice of sufficiently pure adsorbents, which are capable of retaining the components being separated, is of great importance.This paper deals with the purification of germanium t...