Formation of Basic Magnesium Carbonate from Magnesium Chloride and Sodium Carbonate in Aqueous Solution

Treatment of cyclododecane-r-1,c-5,c-9-triyl tris(p-toluenesulphonate) with sodium azide in dimethyl-formamide at 100� for 6 h gave the corresponding cis,cis-triazide which upon hydrogenation or reduction with lithium aluminium hydride gave cyclododecane-r-1,c-5,c-9-triamine, isolated as the tris-salicylidene derivative. Acid hydrolysis of this, removal of the salicylaldehyde, and treatment of the aqueous solution with sodium carbonate and 2,3-dimethoxybenzoyl chloride gave r-1,c-5,c- 9-tris(2,3-dimethoxybenzamido)cyclododecane. �� Treatment of (E,E,E)-cyclododeca-1,5,9-triene with an excess of acetonitrile and sulphuric acid at room temperature for three days gave 18% of (E,E)-1-acetamidocyclododeca-4,8-diene; no di- or tri-amides were isolated.

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270. The absorption spectrum of cobalt chloride in presence of magnesium chloride in aqueous solution

Journal of the Chemical Society (Resumed) ◽

10.1039/jr9360001268 ◽

1936 ◽

pp. 1268 ◽

Cited By ~ 2

Author(s):

O. Rhys Howell ◽

Albert Jackson

Keyword(s):

Aqueous Solution ◽

Absorption Spectrum ◽

Magnesium Chloride ◽

Cobalt Chloride

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Fabrication of Magnesium-Silicon Nanocomplexes by the Interaction of Polyphenylsiloxane with Magnesium Carbonate

Materials Science Forum ◽

10.4028/www.scientific.net/msf.1045.32 ◽

2021 ◽

Vol 1045 ◽

pp. 32-39

Author(s):

Nikolai Shapkin ◽

Natalia Maslova ◽

Evgeniy Papynov ◽

Vladimir Kaminskii ◽

Alevtina Kapustina ◽

...

Keyword(s):

Aqueous Solution ◽

Mechanochemical Activation ◽

Magnesium Carbonate ◽

Polymer Yield ◽

Element Analysis ◽

Exchange Method ◽

Composition And Structure ◽

Ion Exchange Method ◽

Heating Up ◽

Repeated Precipitation

The interaction of magnesium carbonate with polyphenylsiloxane under the conditions of mechanochemical activation with subsequent heating has been investigated. Based on the TGA and DTA data, it has been shown that, upon heating up to 420°C, the reaction proceeded completely with the release of carbon dioxide. The polymer was dissolved in DMFA and purified by repeated precipitation with water. The polymer yield was 64%. The residue insoluble in organic solvents has been obtained by evaporation of an aqueous solution. The composition and structure of the synthesis products have been analyzed by means of element analysis, IR spectroscopy, and diffractometry. It has been demonstrated that the fraction soluble in DMFA had a silicon-to-magnesium ratio equal to 4.2, while the fraction isolated from water had this ratio equal to 1.0. The IR and XRD data enabled one to conclude that, regardless of the different compositions, the structures of all fractions were similar and corresponded to mesomorphic layered polymers produced by the ion exchange method.

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The influence of electrolyte usage on the growth of nanostructured anodic films on copper in sodium carbonate aqueous solution

Journal of Electroanalytical Chemistry ◽

10.1016/j.jelechem.2019.113491 ◽

2020 ◽

Vol 857 ◽

pp. 113491 ◽

Cited By ~ 1

Author(s):

Wojciech J. Stępniowski ◽

Wojciech Z. Misiolek

Keyword(s):

Aqueous Solution ◽

Sodium Carbonate ◽

Anodic Films

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Structural and IR-spectroscopic characterization of magnesium acesulfamate

Zeitschrift für Naturforschung B ◽

10.1515/znb-2015-0132 ◽

2016 ◽

Vol 71 (1) ◽

pp. 51-55 ◽

Cited By ~ 3

Author(s):

Oscar E. Piro ◽

Gustavo A. Echeverría ◽

Beatriz S. Parajón-Costa ◽

Enrique J. Baran

Keyword(s):

Crystal Structure ◽

Aqueous Solution ◽

Elemental Analysis ◽

Spectroscopic Characterization ◽

Magnesium Carbonate ◽

X Ray Diffraction ◽

Triclinic Space Group ◽

X Ray ◽

Ir Spectroscopic

AbstractMagnesium acesulfamate, Mg(C4H4NO4S)2·6H2O, was prepared by the reaction of acesulfamic acid and magnesium carbonate in aqueous solution, and characterized by elemental analysis. Its crystal structure was determined by single crystal X-ray diffraction methods. The substance crystallizes in the triclinic space group P1̅ with one molecule per unit cell. The FTIR spectrum of the compound was also recorded and is briefly discussed. Some comparisons with other simple acesulfamate and saccharinate salts are also made.

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