Wet flue gas desulfurization (WFGD) has been widely used to reduce the harmful effects of sulfur dioxide during coal combustion, of which sulfite is a byproduct. Recycling this desulfurization byproduct requires the oxidation of sulfite, and transition metals might considerably promote the sulfi...

In this manuscript we investigate an inorganic, anionic promoter of barium sulfate crystallization. Sulfite ions are found to promote barium sulfate crystallization at low concentrations. Turbidimetric experiments show homogenous nucleation promotion and AFM results show possible 2D nucleation p...

This article reports on the study to evaluate the potential possibility of regulating the tricalcium aluminate (C3A) hydration process by the addition of calcium sulfite hemihydrate. The kind and the form of hydration products were studied in the system: C3A–CaSO3·0.5H2O–H2O and C3A–CaSO3·0...

Sulfite is a commonly used preservative in food products, alcoholic beverages and pharmaceutical products. We investigated the effect of sulfite, on locomotor activity as well as the relationship of these effects with oxidant and antioxidant capacities, cPLA2 enzyme activity. Thirty male Wistar ...

The performance adjustment of known response motifs is important to further expand their practical applications. In this study, a fluorescent probe based on nitrobenzofurazan response motif anchored structurally asymmetric naphthorhodamine, named NRH-NBD, and has been reported for the rapid and ...

Massive quantities of sulfite-rich flue gas desulfurization (FGD) scrubber sludge have been generated by coal burning power plants. Utilization of the sulfite-rich sludge for preparing α-calcium sulfate hemihydrate (α-HH), an important kind of cementitious material, is of particular interest t...

Sulfite is a compound commonly used as preservative in foods and pharmaceuticals. Many studies have examined the neurotoxicity of sulfite, but its effect on neuronal calcium homeostasis has not yet been reported. Here, we observed the effect of sulfite on the cytosolic free calcium concentration...

The disposal of sulfite-rich flue gas desulfurization (FGD) scrubber sludge has been a tough problem. The sludge now finds its prospective utilization way by being transformed into α-calcium sulfate hemihydrate (α-HH). At low pH, atmospheric pressure and 95.0 °C, the calcium sulfite hemihydra...

Calcium sulfite waste was successfully transformed to hydroxyapatite (HAp) by oxidation using H2O2, followed by reaction with (NH4)2HPO4 under an NH4OH atmosphere. A single phase hydroxyapatite was obtained by stirring at 60, 80, or 100 °C rather than by hydrothermal treatment at 150 °C. Such ...

The catalytic activity of a water-soluble Mn(salen)OAc complex in the epoxidation of alkenes and hydroxylation of alkanes was studied in acetonitrile, at room temperature, using sodium periodate as an oxygen source. The effect of various axial ligands as co-catalyst such as triethylamine, diethy...

In this study, water soluble hyaluronic acid (HA) based hydroxamate and conjugates with biologically active amines and hydrazides such as p- and o-aminophenols, anthranilic, 4- and 5-aminosalicylic acids, nicotinic, N-benzylnicotinic and isonicotinic hydrazides, p-aminobenzenesulfonamide (Strept...

The formation, characterization, photo-protective properties and release profiles of folic acid-loaded nanolaminated films were investigated by UV–visible spectroscopy, FTIR, Raman and SEM microscopy. Food-grade alginate/chitosan nanolaminates were obtained by the layer-by-layer technique and f...

This study focuses on investigating the extraction of gold, copper, iron, nickel, cobalt, and zinc present in the flotation tailings. The studied sample contained iron (3.56%), copper (0.09%), and gold (0.2 ppm) as major target elements, whereas cobalt (0.04%), nickel (0.03%) and zinc (0.04%) we...

Although deep eutectic solvents (DES) and ethylene glycol (EG) electrolytes are gaining ground as media for the electrodeposition of metals, the influence of these electrolytes on the electrode and electrodeposits has not been elaborated before. In this work, we investigate how choline chloride:...

A series of wholly amorphous linear aliphatic co- and tetra-polyesters were synthesized via bulk melt step-growth polymerization. Their glass transition temperatures were determined using DSC and were essentially unaffected by crystallinity. The glass transition temperatures of the polyesters in...

A semiautomated method for the simultaneous determination of propoxyphene hydrochloride and paramethasone acetate is described for coated tablets. A novel device for the removal and dissolution of tablet coatings is outlined. Solutions are sampled with an automatic sampler at the rate of 20/hr. ...

The in vitro release of drugs from controlled-release dosage forms has been studied in terms of a diffusion model. The model has been applied to a pellet formulation containing propoxyphene hydrochloride. It is demonstrated that the model may be used to predict the drug release profile adequatel...

The urinary excretion pattern of d-propoxyphene hydrochloride in man has been determined. An assay method utilizing bromthymol blue was used to measure total excretion. Approximately 25 per cent of a 65-mg. dose was recovered in the urine within 48 hr. as a mixture of free drug and metabolite. T...

Background:Published guidelines have identified propoxyphene as an inappropriate medication for use in aged patients. It is no more effective than acetaminophen, yet has been associated with the same adverse effects (AEs) associated with other opioid drugs. In particular, its central nervous sys...

The determination of propoxyphene hydrochloride by gas chromatography (GC) has been examined. Under a number of operating conditions significant on-column decomposition has occurred. The amounts of decomposition have been found to be dependent on sample size, flow-rate, column temperature, liqui...