Question

Define gold number????

Answer 1

The minimum amount of the protective power of colloid in milligrams required to just prevent the coagulation of a 10 ml of a given gold solution when 1 ml of 10% solution of sodium chloride is added to it is called gold number.

Answer 2

Gold Number:-the minimum mass of protective colloid is the added to 10 ml of a standard red gold sol (Containing 0.0053 to 0.0058) so that no coagulation of the gold soltakes place is called the Gold Number.