Surface Conditions of Silver Halides and Rate of Reaction. I. Rate of Reduction of Precipitated Silver Chloride

1940 ◽  
Vol 62 (3) ◽  
pp. 536-540 ◽  
Author(s):  
T. H. James
Keyword(s):  
Silver Chloride ◽  
Silver Halides ◽  
Surface Conditions ◽  
Rate Of Reaction

Notizen: Catalytic Silver Reduction in Sulphide Containing Silver Chloride Melts

1981 ◽  
Vol 36 (11) ◽  
pp. 1255-1256 ◽  
Author(s):  
Thomas Lieser ◽  
Konrad G. Weil
Keyword(s):  
Silver Chloride ◽  
Silver Ion ◽  
Energy Of Activation ◽  
Temperature Range ◽  
Chloride Melts ◽  
Rate Of Reaction ◽  
Silver Sulphide

In silver chloride melts, containing small mole fractions of silver sulphide (~ 10-2 - 10-3), silver ion reduction takes place when solid silver is present. The rate of reaction is constant with time and proportional to the area of the metal. In the temperature range 780 K< T < 890 an ap­parent energy of activation of 1.3 · 102 kJ mol-1 is ob­tained.

scholarly journals The Antimicrobial Action of Silver Halides in Calcium Phosphate

2014 ◽  
Vol 631 ◽  
pp. 384-389 ◽  
Author(s):  
Daina Kalnina ◽  
Karlis Agris Gross ◽  
Pavels Onufrijevs ◽  
Edvins Dauksta ◽  
Vizma Nikolajeva ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Calcium Phosphate ◽  
Amorphous Calcium Phosphate ◽  
Silver Iodide ◽  
Silver Chloride ◽  
Calcium Phosphates ◽  
Silver Halide ◽  
Silver Bromide ◽  
Silver Halides ◽  
Carbonated Apatite

Silver halides represent a yet unexplored avenue for imparting antimicrobial activity in calcium phosphates. Silver halide colloids were added to calcium phosphate. Concurrent melting of silver halides and crystallization of carbonated apatite was achieved by heating to increase the silver halide surface area available to bacteria.Pseudomonas aeruginosa were more sensitive to silver iodide and silver bromide than Staphylococcus aureus. Silver iodide demonstrated greater activity than silver bromide. Silver chloride did not produce an antibacterial response. Both amorphous calcium phosphate and carbonated apatite displayed similar antibacterial activity when accompanied by silver halides. It is thought that amorphous calcium phosphate dissolves more readily and increases the bioavailability of the silver halide particles. Silver iodide displays a greater antibacterial response of all silver halides, with a response that is improved in a more resorbable matrix.

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