On some regularities of magnesium oxide solubility in melts with different content of alkaline earth metal chlorides

2017 ◽  
Vol 113 ◽  
pp. 1-5 ◽  
Author(s):  
V.L. Cherginets ◽  
Tatyana P. Rebrova ◽  
Alexander L. Rebrov ◽  
Tamara V. Ponomarenko ◽  
Oleg I. Yurchenko
Keyword(s):  
Magnesium Oxide ◽  
Alkaline Earth ◽  
Earth Metal ◽  
Alkaline Earth Metal ◽  
Metal Chlorides ◽  
Different Content ◽  
Oxide Solubility

Enhanced dehydrogenation of ammonia borane by reaction with alkaline earth metal chlorides

2012 ◽  
Vol 37 (5) ◽  
pp. 4274-4279 ◽  
Author(s):  
Yongtao Li ◽  
Fang Fang ◽  
Yun Song ◽  
Yuesheng Li ◽  
Qingan Zhang ◽  
...  
Keyword(s):  
Alkaline Earth ◽  
Earth Metal ◽  
Ammonia Borane ◽  
Alkaline Earth Metal ◽  
Metal Chlorides

Molecular interaction investigation of some alkaline earth metal salts in aqueous citric acid at various temperatures by physiochemical studies

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Manish Kumar ◽  
Shashi Kant ◽  
Deepika Kaushal
Keyword(s):  
Citric Acid ◽  
Molar Volume ◽  
Apparent Molar Volume ◽  
Alkaline Earth ◽  
Relative Viscosity ◽  
Earth Metal ◽  
Metal Salts ◽  
Alkaline Earth Metal ◽  
Viscosity Data ◽  
Metal Chlorides

Abstract Densities, ultrasonic velocity, conductance and viscosity of some alkaline earth metal chlorides such as magnesium chloride (MgCl2) and calcium chloride (CaCl2) were calculated in the concentration range (0.01–0.12 mol kg−1) in 0.01 mol kg−1 aqueous solution of citric acid (CA + H2O) at four varying temperatures T 1 = 303.15 K, T 2 = 308.15 K, T 3 = 313.15 K and T 4 = 318.15 K. The parameters like apparent molar volume (ϕ v ), limiting apparent molar volume ( ϕ v o ${\phi }_{v}^{o}$ ) and transfer volume (Δtr ϕ v o ${\phi }_{v}^{o}$ ) were calculated from density data. Viscosity data have been employed to calculate Falkenhagen coefficient (A), Jone–Dole’s coefficient (B), relative viscosity (η r ), and relaxation time (τ) whereas limiting molar conductance ( Λ m o ${{\Lambda}}_{m}^{o}$ ) has been evaluated from conductance studies. Using these parameters, various type of interactions occurred in the molecules have been discussed. Values of Hepler’s constant (d 2 ϕ v o ${\phi }_{v}^{o}$ /dT 2) p , (dB/dT) and d( Λ m o ${{\Lambda}}_{m}^{o}$ η o )/dT suggests that both MgCl2 and CaCl2 behave as structure breaker in (CA + H2O) system. The positive value of transfer volume exclusively tells about solute–solvent interactions which further indicate that both metal chlorides distort the structure of water and act as structure breaker. These studies are helpful in understanding the nature of interactions occurs in biological systems as CA and metal salts are essential for normal functioning of body.

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