Research has indicated that the alkali sulphates, primarily sodium, calcium and magnesium, are the key mineral constituents in coal that contribute to ash deposition and hence agglomeration and defluidisation in fluid beds. The combinations of these three constituents readily form low melting point ...
Silica nanoparticles (SiO2NPs) have garnered substantial attention as versatile additives in saline fluids, finding application in areas like environmental remediation, wastewater treatment, enhanced oil recovery, and carbon geo-sequestration. Despite their potential, the intricate interaction between electrolyz...
The elemental constituents of this layer include aluminium, sodium, potassium, magnesium, iron, and lesser amounts of titanium and copper. The variation in the aluminium concentration from the outermost surface to the deeper layers is less than that of other non-silica species. A relatively high ...
The major remaining inorganic component is SiO2 (80%), along with some minor inorganic constituents including alumina (3.93%), sulfur trioxide (0.78%), iron oxide (0.41%), calcium oxide (3.84%), magnesium oxide (0.25%), sodium oxide (0.67%), potassium oxide (1.45%), and a loss of ...
Often dielectric, thermal and mechanical properties are tailored by incorporating different particulate fillers in the PTFE matrix in various proportions. It has been reported that PTFE is filled with particulates of silica, titania, strontium titanate, calcium titanate, magnesium titanate, etc. to ...
Modelling of processes involving deep Earth liquids requires information on their structures and compression mechanisms. However, knowledge of the local structures of silicates and silica (SiO2) melts at deep mantle conditions and of their densification
Furthermore EPEF was diluted in ethanol and the Shinoda reaction was performed in order to confirm the presence of isoflavones. Briefly, 0.1 g of powder was diluted into 10 mL of EtOH. Magnesium pieces and 5 drops of concentrated HCl were added. After 5 min, a change of color was observed...
In nanocomposites, the adhesion between nanofillers and the polymeric matrix is key to the mechanical properties. The strength and spatial distribution of the adhesive layer around the nanofillers are important, particularly the presence of chemical bond
have good cleaning and polishing effects. Alpha-aluminum oxide, which has a Mohs hardness of 9, has a relatively strong abrasive effect on dental enamel. To reduce the enamel abrasion, certain calcium, magnesium or sodium salts have been added to a dentifrice containing the aforementioned ...
of the ore to form a silicate of soda varying in composition from Na2O.SiOa to Na20.2Si02, also sodium manganate with varying amounts of sodium permanganate. Depending on the composition of the ore, introduction of elements as sodium, potassium, aluminum, iron, lime and magnesium may occur...