Mercury sulfide Mercury sulfide Mercury sulfide, mercuric sulfide, mercury sulphide, or mercury(II) sulfide is a chemical compound composed of the chemical elements mercury and sulfur. It is represented by the chemical formula HgS. It is virtually insoluble in water. HgS is dimorphic with two crystal forms: Crystals of red, α-HgS, are optically active. This is caused by the Hg-S helices in the structure. β-HgS is precipitated as a black powder when HS is bubbled through solutions of Hg(II) salts. β-HgS is unreactive to all but concentrated acids. Mercury metal is produced from the cinnabar ore by roasting in air and condensing the
MS Ore Brasil Subsequently the Chinese government banned all ships over 300,000 DWT, effectively banning the "Valemax" ships from entering Chinese ports. MS Ore Brasil MS "Ore Brasil, previously known as Vale Brasil", is a very large ore carrier owned by the Brazilian mining company Vale. She is the first of seven 400,000-ton very large ore carriers (VLOC) ordered by Vale from Daewoo Shipbuilding & Marine Engineering in South Korea and twelve from Jiangsu Rongsheng Heavy Industries in China, which are designed to carry iron ore from Brazil to Asia along the Cape route around South Africa. While close to the specifications of