Consumers should avoid unlabeled products or those listing "mercury," "mercurio," or "calomel" (mercurous
chloride) as ingredients.
Heating mercuric chloride with some more mercury produced mercurous
chloride, or "calomel." It was still a cathartic, but being far less soluble than mercuric chloride, it was less toxic.
Surgeons relied on strong mercury purgatives (laxatives), such as calomel (mercurous
chloride) or "blue pill" (mercury and chalk).
In the 19th century, the hat-making profession was dogged by mental illness caused by the use of the toxic chemical mercurous
Studies on heavy metal halides showed that mercurous
chloride single crystals could be grown of a size and perfection suitable for prism polarizers with transmission to at least 16 [mu]m (53).
Mercury exists in ionic form as [Hg.sup.2+] (mercuric) and [Hg.sup.+] (mercurous
Although this is a book of larger ideas and reverberating themes, it is also a delight in its thousand details - the supplies of ships (plum puddings, brandy, heaps of hand-knitted socks, hundreds of pounds of pemmican, knives and needles to barter with the Esquimaux), the hospitality of the Esquimaux women, who reach out with tattooed hands to offer musk-ox horn tea and boiled caribou, the medical treatments for maladies of the day (tartar emetic, mercurous
chloride, syrup of squill, tincture of opium).
The name refers to the occupational disease of hatters caused by inhaling mercurous
The various chemical forms of mercury can be divided into three primary categories: 1) metallic mercury (also called liquid or elemental mercury); 2) inorganic mercury, including common compounds formed from the monovalent and divalent cations (e.g., mercurous
chloride, mercuric chloride, mercuric acetate, and mercuric sulfide); and 3) alkyl, dialkyl, and aryl organic mercury compounds (e.g., methylmercuric chloride, dimethyl mercury, and phenylmercuric acetate, respectively) (Agency for Toxic Substances and Disease Registry [ATSDR], 1999; Clarkson, 2002).