Period 6 element point of −38.83 °C and boiling point of 356.73 °C, mercury has one of the narrowest ranges of its liquid state of any metal. Mercury occurs in deposits throughout the world mostly as cinnabar (mercuric sulfide). The red pigment vermilion is mostly obtained by reduction from cinnabar. Cinnabar is highly toxic by ingestion or inhalation of the dust. Mercury poisoning can also result from exposure to water-soluble forms of mercury (such as mercuric chloride or methylmercury), inhalation of mercury vapor, or eating seafood contaminated with mercury. Mercury is used in thermometers, barometers, manometers, sphygmomanometers, float valves, mercury switches, and other
International Institute of Risk & Safety Management International Institute of Risk & Safety Management The International Institute of Risk & Safety Management (IIRSM) is a professional membership body for safety practitioners worldwide. It is a registered British Charity (number 1107666) and UK Company limited by guarantee (number 5310696). IIRSM have two main membership streams. A “health and safety practitioner stream”, for those qualified or studying to be health and safety practitioners, and a “specialist stream”, for those who are qualified to degree or NVQ level 4 (or equivalent) and above, in a profession associated with health and safety practice but who hold no health and safety practitioner