Change Color Of Rubber What Chemicals Can Change The Color Of Gold?

What chemicals can change the color of gold? - change color of rubber

I had come to clean the shower with me without gloves and some chemicals the ring. My ring 10k gold-brown altered, but the 24K did not change the color. I worked with Tilex products and some disenfectants industrial power. I wonder what has changed color, and how can I change this setting, unless it until a normal jeweler for cleaning. Voting best answer will receive a full response, reflected with the correct grammar.

Thank you!