The protective power of a lyophilic colloidal | vedclass

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(C) The protective power of a lyophilic colloidal sol is expressed in terms of $Gold \ number$. Gold number is defined as the minimum amount of protec

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Gold number

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(C) The protective power of a lyophilic colloidal sol is expressed in terms of $Gold \ number$. Gold number is defined as the minimum amount of protective colloid in milligrams that must be added to $10 \ mL$ of a standard red gold sol to prevent its coagulation when $1 \ mL$ of a $10\% \ NaCl$ solution is added to it. Smaller the gold number,higher is the protective power of the colloid.

The protective power of a lyophilic colloidal sol is expressed in terms of

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