Preparing a solution from the salt of sodium dichromate
Sodium dichromate and other lab chemicals
Preparing a solution from the salt of sodium dichromate
Erin Brockovich speaking at the 2016 Arizona Ultimate Women's Expo at the Phoenix Convention Center in Phoenix, Arizona.
'PG&E did it, and always knew, since 1952!!' A billboard, outside the desert town of Hinkley, CA.