Bone char

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.

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Bone char is used to remove fluoride from water and to filter aquarium water.

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It is often used in the sugar refining industry for decolorizing (a process patented by Louis Constant in 1812). This leads to worries from vegans, 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 sugar can be considered truly vegan.

Material: Material may refer to one of the following:...

Bone: Bone is a type of hard endoskeletal connective tissue found in many vertebrate animals. Bones support body structures, protect internal organs, and (in conjunction with muscles) facilitate movement; are also involved with cell formation, calcium metabolism, and mineral storage. The bones of an anima...

Air: Air is a name for the mixture of gases present in the Earth's atmosphere....

Bone char related Images and Photos (experimental)

Bone Head	Bone Doctor	Bone Bike Poster	Monkey Bone
Back Bone c.1997	Dog Bone Stamp	Bone Chillers Ice Tray	The Bone Collector
Slayer - Bone Shield	The Bone Collector DVD (Widescreen)	Bone 2011 Wall Calendar	The Bone Player 1856