Bone char, also known as bone black or animal charcoal, is a granular black material produced by calcinating animal bones: the bones are heated to high temperatures in the absence of air to drive off volatile substances. It consists mainly of calcium phosphate and a small amount of carbon. Bone char has a very high surface area and a high absorptive capacity for lead, mercury, and arsenic. Charcoal is the blackish residue consisting of impure carbon obtained by removing water and other volatile constituents from animal and vegetation substances. ... Look up material in Wiktionary, the free dictionary. ... Calcination is the process of heating a substance to a high temperature, but below its melting or fusing point, to bring about thermal decomposition or a phase transition in its physical or chemical constitution. ... Grays Anatomy illustration of a human femur. ... Layers of Atmosphere (NOAA) Air redirects here. ... Volatile is the name of more than one concept: A financial instrument with high volatility is considered volatile in economics. ... Calcium phosphate is the name given to a family of minerals containing calcium ions (Ca2+) together with orthophosphates (PO43-), metaphosphates or pyrophosphates (P2O74-) and occasionally hydrogen or hydroxide ions. ... General Name, Symbol, Number carbon, C, 6 Chemical series nonmetals Group, Period, Block 14, 2, p Appearance black (graphite) colorless (diamond) Atomic mass 12. ... This article explains the meaning of area as a Physical quantity. ...

Uses

Bone char is used to remove fluoride from water and to filter aquarium water. Fluoride is the ionic form of fluorine. ... In chemistry, alchemy and water treatment, filtration is the process of using a filter to mechanically separate a mixture. ... For other uses, see Aquarium (disambiguation). ...

It is often used in the sugar refining industry for decolorizing (a process patented by Louis Constant in 1812). This is a concern for vegans and vegetarians, since about a quarter of the sugar in the US is processed using bone char as a filter (about half of all sugar from sugar cane is processed with bone char, the rest with activated carbon). As bone char does not get into the sugar, sugar processed this way is considered parve/Kosher. Vegans are of varying opinions over whether such sugar can be considered truly vegan. Magnification of typical sugar showing monoclinic hemihedral crystalline structure. ... For the overture by Tchaikovsky, see 1812 Overture; For the wars, see War of 1812 (USA - United Kingdom) or Patriotic War of 1812 (France - Russia) For the Siberia Airlines plane crashed over the Black Sea on October 4, 2001, see Siberia Airlines Flight 1812 1812 was a leap year starting... The logo of the worlds first Vegan Society, registered in 1944 Veganism (also known as strict vegetarianism or pure vegetarianism) is a philosophy and lifestyle that avoids using animals and animal products for food, clothing and other purposes. ... For animals adapted to eat primarily plants, sometimes referred to as vegetarian animals, see Herbivore. ... Activated carbon from a water filter used for carbon filtering in powder and block form Activated carbon, also called activated charcoal or activated coal, is a general term which covers carbon material mostly derived from charcoal. ... Kosher foods are those that meet certain criteria of Jewish law. ... The circled U indicates that this can of tuna is certified kosher by the Union of Orthodox Congregations. ...

It is used to refine crude oil in the production of Vaseline. Pumpjack pumping an oil well near Sarnia, Ontario Ignacy Łukasiewicz - inventor of the refining of kerosene from crude oil. ... Petroleum jelly or petrolatum is a byproduct of the refining of petroleum, made from the residue of petroleum distillation left in the still after all the oil has been vaporized. ...

Bone char is also used as a black pigment. It is sometimes used for artistic painting because it is the deepest available black, though charcoal black is often satisfactory and is more often used. Ivory black is an artists' pigment formerly made by grinding charred ivory in oil. Today it is considered a synonym for bone char. Ivory is no longer used because of the expense, and because animals that are natural sources of ivory are subject to international control as endangered species. For animal and plant pigments, see Pigment, biology. ... Painter redirects here. ... Soot, also called lampblack, Pigment Black 7, carbon black or black carbon, is a dark powdery deposit of unburned fuel residues, usually composed mainly of amorphous carbon, that accumulates in chimneys, automobile mufflers and other surfaces exposed to smoke—especially from the combustion of carbon-rich organic fuels in the... Bone char, also known as bone black or animal charcoal, is a granular black material produced by calcining animal bones: the bones are heated to high temperatures in the absence of air to drive off volatile substances. ... This article or section does not cite its references or sources. ... Natural olive oil Synthetic motor oil Oil, in a general sense, is a chemical compound that is not miscible with water, and is in a liquid state at ambient temperatures. ... The critically endangered Amur Tiger, a rare subspecies of tiger. ...