Question is too vague and the white might not be a chemical reaction at all, but an insoluble precipitate as here
Some absinthes turn cloudy when water is added. This is due to the spirit containing components that are not soluble in water (mainly fennel and star anise) and the hydration causes them to drop out of solution with the alcohol, turning the drink cloudy with a milky opaqueness known as the louche.
here is another spirit drink that has this property
Ouzo is a clear liquid. However, when water or ice is added, ouzo turns a milky-white colour. This is because anethole, the essential oil of anise, is completely soluble in alcohol at approximately 38% ABV and above, but not in water.
thank you for directing in the right direction.....i made this by accident and didnt understand how it happens,because it looks pretty cool..... of course i used different chemicals..... thank you again