By Dr. A.K. Williams, PhD. San Pedro, Costa Rica Specifics Mercury is the only metal which occurs as a liquid at ordinary temperatures Mercury is one of only two metals which occurs naturally in both its metallic and oxidized state, The other being copper. Mercury will form amalgams with almost all metals except Iron and Aluminum. Occurrence in earth’s crust 0.5 ppm. That is 0.5 mg/kilo. Melting point is –38.87 C. Boiling point is 356.72 C Density at 25C 13.534 gr/cubic centimeter (cc) Vapor … Read entire article »