Question

hi guys......how are you plzzz defie gold number ..........​

Answer 1

Answer:

Gold Number is the number of milligrams of a protective colloid which prevents the coagulation of 10 ml of a standard hydro gold sol,on coagulation changes from red to blue, which is prevented by a protective colloid.

of 1ml 10% NaCl solution.

The gold number of some colloids are given below.

Answer 2

Answer:

❥The Gold Number is the minimum weight (in milligrams) of a protective colloid required to prevent the coagulation of 10 ml of a standard hydro gold sol when 1 ml of a 10% sodium chloride solution is added to it. ... The sodium chloride ions disrupt this electrical double layer, causing coagulation to occur.