In this work, a method employing coprecipitation procedure with magnesium hydroxide as a carrier for separation/preconcentration of arsenic(V), cadmium(II), chromium(III), cobalt(II), copper(II), manganese(VII), mercury(II), nickel(II), and vanadium(V) was developed. The method was applied...
Beryllium is soluble in hot nitric acid, diluted hydrochloric and sulfuric acids and sodium hydroxide. It is like aluminum and magnesium in many ways. It resembles the two chemically and it readily creates compounds with other elements. Beryllium can’t be found in nature. This chemical is resis...
A previous study in female dugongs ana- lyzed elements in the 55 annual incremental longitudinal sections of tusks, and reported the presence of nine elements: barium (Ba), lithium (Li), sodium (Na), calcium (Ca), iron (Fe), magnesium (Mg), phosphorus (P), strontium (Sr) and zinc ...
The detailed procedure was described as the following [37]: 1.66 g of sodium metaaluminate and 0.41 g of potassium hydroxide were dissolved in 126 mL deionized water. Then, 16 mL of HMI was added to the mixture, added dropwise and stirred. Into a homogeneous mixture, Characterization of as...
In this study, trace elemental signatures (TES) of the goose barnacle Pollicipes pollicipes, collected from ten sites along the Portuguese coast, were employed to discriminate individual's origin. Barium (Ba), boron (B), cadmium (Cd), chromium (Cr), lithium (Li), magnesium (Mg), manganese...
The elemental composition is the composition of each element in a compound. It is commonly expressed in the percentage of the mass of each element: $$\displaystyle \%_{element} = \frac{mass_{element}}{mass_{compound}} \times 100\% ...
Sodium and water react to form sodium hydroxide and hydrogen gas. Write a balanced equation for the reaction of magnesium and oxygen ( O 2 ), including their physical states. Write a balanced equation and indicate the states for the reaction: Magnesiu...
(no more than 20%) was 40–60% of the content in the sample, iron up to 90%. Potassium, magnesium, and phosphorus limitation is known to occur in natural groundwater, and the release of these elements may result in a significant increase in the rates of microbial processes. Importantly,...