SODIUM COMPOUND

Sodium halides, Sodium nitrate, Sodium nitrite. Sodium sulfates. Sodium sulfides. 

Kirk-Othmer Encyclopedia of Chemical Technology (4th Edition) 

The kinetics of the reactions of sulphur dioxide with sodium and with potassium have been investigated at 383—493 and 298—403 K, respectively. The only product identified from the former reaction was sodium sulphide, Na2S. A diflEusion-controlled process was indicated. The reaction with potassium appeared to be simpler since only potassium dithionate was formed  

A mechanism based on adsorption-reaction is in general agreement with the observed kinetics. New solid-state syntheses of crystalline selenates M2Se04 (M = K, Rb, and Cs) and antimonates, MSbOa (M = K or Rb), M3Sb04 (M = K, Rb, and Cs) involve treatment of the powdered superoxides, MO2, with Se02 and Sb203, respectively. These ternary oxides have been characterized by their X-ray diffraction patterns. 

The crystal structures of the high-temperature modifications of -sodium antimony sulphide and /3-sodium antimony selenide, determined by X-ray methods, are isotypic and possess a fee lattice of the NaCl type with a statistical distribution of (Na + Sb) atoms in the Na positions and of S (or Se) atoms in the Cr positions. Crystal data are space group Fm3m for each, a = 5.7748, 5.965 A d(expt.) = 3.54, 4.68 d(calc.) = 3.60, 4.73 Z = 2, 2 for /8-NaSbS2 and -NaSbSe2, respectively. The low-temperature modifications o -NaSbS2 and a-NaSbSe2 are not isostructural and exhibit lower symmetry. Atoms of Na and Sb in 

Jarzembowski, F. Cassaretto, H. Posvic, and C. E. Moore, Analyt. Chim. Acta, 1974, 73, 409. S. Weiss and H. Krommer, Angew. Chem., 1974, 86, 590. 

172 p Touzain, H. F. Avedi, and J. Besson, Bull. Soc. chim. France, 1974, 421. 

Gmelin s Handbook of Inorganic Chemistry, System No. 21, Index Volume on Sodium, has been published.220 

Prochazka and M. Nedved, Coll. Czech. Chem. Comm., 1973, 38, 2845. 

The reaction of the catalyst with sodium occurs first, and the catalyst is regenerated by the action of hydrogen and sodium hydride is produced.222 

Norbert, and D. Cachau-Herreillat, Compt. rend., 1973, 276, C, 677. 

NaOH and gives virtually no hydrogen in the gas phase. The rate of the reaction is given by  

The anion PgO has a nearly eclipsed configuration. Two of the four Na+ ions are co-ordinated to five O atoms while the remainder are co-ordinated to six O atoms. The structure contains chains of cations with four nearly collinear Na+ per cell parallel to the c-axis. These are surrounded by six anions. Adjacent anions along the c-axis are separated by a pair of Na+ ions.  

---

C7H9N402- M.p. 337 C, an alkaloid obtained from cacao seeds or prepared synthetically. Constitutionally it is similar to caffeine, and is also a weak base. It is usually administered as the sodium compound combined with either sodium ethanoate or sodium salicylate, and is employed almost entirely as a diuretic. Physiologically theobromine resembles caffeine, but its effect on the central nervous system is less, while its action on the kidneys, is more pronounced. 

Sodium and potassium hydroxides. The use of these efficient reagents is generally confined to the drying of amines (soda lime, barium oxide and quicklime may also be employed) potassium hydroxide is somewhat superior to the sodium compound. Much of the water may be first removed by shaking with a concentrated solution of the alkali hydroxide. They react with many organic compounds (e.g., acids, phenols, esters and amides) in the presence of water, and are also soluble in certain organic liquids so that their use as desiccants is very limited... 

Sodium compounds are important to the paper, glass, soap, textile, petroleum, chemical, and metal industries. Soap is generally a sodium salt of certain fatty acids. The importance of common salt to animal nutrition has been recognized since prehistoric times. 

---