animal charcoal

American  

noun

1. carbon obtained from the carbonization of organic tissue of animals.

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Example Sentences

See Examples For:

animal charcoal

One turned out to be a piece of animal charcoal, another was chalk, and a third a vegetable substance like a bezoar.

From The Browning Cyclop?dia A Guide to the Study of the Works of Robert Browning by Edward Berdoe

Of these, the spent animal charcoal of the sugar-refiners, usually containing about 70 per cent of phosphates, and South American bone ash, are the most important.

From Elements of Agricultural Chemistry by Thomas Anderson

At the present time shellac is bleached by filtration over animal charcoal.

From French Polishing and Enamelling A Practical Work of Instruction by Richard Bitmead

A variety of animal charcoal is sometimes prepared by calcining fresh blood with potassium carbonate in large cylinders, the mass being purified by boiling out with dilute hydrochloric acid and subsequent reheating.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 3 "Capefigue" to "Carneades" by Various

The phenomenon is regarded as one of purely mechanical surface-attraction, and is compared with that exercised by animal charcoal when employed in decolourizing a solution of some colouring matter.

From Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" by Various