Interaction between Cholesterol and Calcium Ions in Solution

1975 ◽  
Vol 30 (11-12) ◽  
pp. 718-721 ◽  
Author(s):  
S. P. Marfey ◽  
R. Van Meter ◽  
M. E. Bartlet
Keyword(s):  
Calcium Chloride ◽  
Freezing Point ◽  
Cellulose Membrane ◽  
Aqueous Dioxane ◽  
Freezing Point Depression ◽  
Three Solutions ◽  
Chloride Dihydrate ◽  
Natural Protein ◽  
Protein Membrane ◽  
Calcium Chloride Dihydrate

Abstract Dialysis rates of cholesterol, calcium chloride dihydrate and of their mixture in 90% aqueous dioxane through Visking cellulose membrane were characterized by half-escape times (t½) of 2.2, 1.0 and 10.5 hours, respectively. Slow dialysis rate observed with the mixture was due to complex formation between four molecules of cholesterol and two molecules of calcium chloride dihydrate, molecular weight 1800 to 2000. The association constant for this complex in 90% aqueous dioxane was estimated to be 3.9 × 1014. Rates of dialysis obtained with a natural protein membrane were in the reverse order to those obtained with cellulose membrane. Half-escape times for cholesterol, calcium chloride dihydrate and for their mixture were 0.6, 6.7 and 1.4 hours, respectively. Determinations of milliosmolality of the three solutions by freezing point depression indicated that in the mixture there were fewer osmotically active same molarity, also suggesting formation of the complex which was detected by dialysis experiments.

scholarly journals White mineral trioxide aggregate mixed with calcium chloride dihydrate: chemical analysis and biological properties

2017 ◽  
Vol 42 (3) ◽  
pp. 176 ◽  
Author(s):  
Hany Mohamed Aly Ahmed ◽  
Norhayati Luddin ◽  
Thirumulu Ponnuraj Kannan ◽  
Khairani Idah Mokhtar ◽  
Azlina Ahmad
Keyword(s):  
Chemical Analysis ◽  
Calcium Chloride ◽  
Mineral Trioxide Aggregate ◽  
Biological Properties ◽  
Chloride Dihydrate ◽  
Calcium Chloride Dihydrate ◽  
White Mineral

On the T s Anomaly in Betaine Calcium Chloride Dihydrate (BCCD)

2002 ◽  
Vol 270 (1) ◽  
pp. 345-350 ◽  
Author(s):  
J. L. Ribeiro ◽  
O. Hernandez ◽  
L. G. Vieira ◽  
P. Thuery ◽  
M. R. Chaves ◽  
...  
Keyword(s):  
Calcium Chloride ◽  
Chloride Dihydrate ◽  
Calcium Chloride Dihydrate

On the transition to the x-phase in highly brominated betaine calcium chloride dihydrate (BCCD)

2000 ◽  
Vol 240 (1) ◽  
pp. 1435-1442
Author(s):  
L. G. Vieira ◽  
J. L. Ribeiro ◽  
O. Hernandez ◽  
M. Quilichini ◽  
A. Almeida ◽  
...  
Keyword(s):  
Calcium Chloride ◽  
Chloride Dihydrate ◽  
Calcium Chloride Dihydrate
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