Gold number of a lyophilic sol is such a prop | vedclass

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(C) The gold number of a lyophilic sol is defined as the minimum amount of the protective colloid in milligrams required to just prevent the coagulati

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Lower its value,the greater is the protecting power

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(C) The gold number of a lyophilic sol is defined as the minimum amount of the protective colloid in milligrams required to just prevent the coagulation of $10 \, mL$ of a standard gold sol when $1 \, mL$ of a $10 \, \%$ $NaCl$ solution is added to it.Since the gold number represents the amount of colloid needed to provide protection,a lower gold number indicates that a smaller amount of the substance is required to achieve the same protective effect.Therefore,the lower the gold number,the greater is the protecting power of the lyophilic colloid.

Gold number of a lyophilic sol is such a property that:

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