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23Na
Published in Guillaume Madelin, X-Nuclei Magnetic Resonance Imaging, 2022
The sodium element and its compounds are used in a wide range of applications, from astrophysical research to nutrition or industry. Sodium’s very strong yellow-orange spectral line is used by astronomers to identify stars that are similar to our Sun. The most common compound is sodium chloride (common salt) which is added to food, used to de-ice roads in winter, or as a feedstock for the chemical industry. Sodium carbonate and sodium hydroxide are widely used in manufacture of glass, paper, textiles, soaps, and detergents, but also as water softening or cooking. Liquid sodium can also be used as a coolant in nuclear reactors. Sodium vapor is used in streetlights and produces a brilliant yellow light.
Aromatic Plants as a Tool for Phytoremediation of Salt Affected Soils
Published in Amitava Rakshit, Manoj Parihar, Binoy Sarkar, Harikesh B. Singh, Leonardo Fernandes Fraceto, Bioremediation Science From Theory to Practice, 2021
B.B. Basak, G.R. Smitha, Anil R. Chinchmalatpure, P.K. Patel, Kumar B. Prem
Formation of carbonates of Na and alkalization in the soil take place as a result of carbonation of alumino-silicate minerals in the presence of water. Sodium carbonate is highly soluble and its hydrolysis results in high alkalinity (pH up to 12).
Water Chemistry
Published in Frank R. Spellman, The Science of Water, 2020
As stated previously, symbols are used to identify elements. This is a shorthand method for writing the names of the elements. This shorthand method is also used for writing the names of compounds. Symbols used in this manner show the kinds and numbers of different elements in the compound. These shorthand representations of chemical compounds are called chemical formulas. For example, the formula for table salt (sodium chloride) is NaCl. The formula shows that one atom of sodium combines with one atom of chlorine to form sodium chloride. Let’s look at a more complex formula for the compound sodium carbonate (soda ash): Na2CO3. The formula shows that this compound is made up of three elements: sodium, carbon, and oxygen. In addition, there are two atoms of sodium, one atom of carbon, and three atoms of oxygen in each molecule.
Zinc recovery from Wulagen sulphide flotation plant tail, Part I: reagent scheme design
Published in Canadian Metallurgical Quarterly, 2022
Xiao Ni, Zhian Liang, Shuiping Zhong, Zilong Ma, Yinfei Liao
Sodium carbonate is often used as a pH modifier in minerals processing. Figure 4 shows Zn recovery and grade from batch flotation tests using 1 kg/t sodium carbonate along with the different dosages of sodium sulphide. It can be seen that the optimum sodium sulphide dosage was reduced by almost half to 6 kg/t; therefore, by combining sodium carbonate and sodium sulphide, a lower overall modifier dosage could be obtained and no negative effect could be seen on Zn flotation.