Question

What is gold number?? ​

Answer 1

Gold Number is a term used in colloidal chemistry. It is defined as the minimum amount of protective colloid in milligrams which prevents a color change from red to violet of 10ml gold sol by the addition of 1 ml of 10%NaCl solution.

Answer 2

Answer:

Gold Number is a term used in colloidal chemistry. It is defined as the minimum amount of protective colloid in milligrams which change the colour from red to violet of 10ml gold solution by the addition of 1ml.10%NACL solution