Hello there, I was recently diagnosed with MS. I have had several symptoms but since I was diagnosed about 4 months ago I have had a almost continious burning sensation on my back. My neurologist says it is not a typical MS symptom, but it could be the stress of the diagnosis influencing my muscles.
Mercury, also known as quicksilver or hydrargyrum, is a chemical element. Its symbol on the periodic table is Hg, and its atomic number is 80. Its atomic mass is 200.59. The symbol Hg stands for its Latinized Greek name hydrargyrum, meaning watery or liquid silver.
black, metacinnabar (Î²-HgS), is less common in nature and adopts the zinc blende (T 2 d-F 4 3m) crystal structure. Crystals of red, Î±-HgS, are optically active. This is caused by the Hg-S helices in the structure. Preparation and chemistry. Î²-HgS is precipitated as a black powder when H 2 S is bubbled through solutions of Hg(II) salts. Î²-HgS is unreactive to all but concentrated acids. Mercury metal is produced from the cinnabar ore by roasting in air and condensing the vapour. Uses. When Î±-HgS is used as a red pigment, it is known as vermilion.