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Saturday, September 26, 2015

What is Gold Number?

It is define as the number of milligrams of the protective colloid which prevent the coagulation of 10 ml of gold solution when 1ml of 10% Nacl solution is added to it. Lesser is the value of Gold no. higher will be the protective power.
Gold No of some protective power.
Gelatin----0.005
Albumen--0.08
Starch-----2.5
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