animal charcoal

American  

noun

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

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Example Sentences

Animal Charcoal for Decolorisation.—The application of animal charcoal for decolorising purposes dates back a century, and various are the views that have been propounded to explain its action.

From The Handbook of Soap Manufacture by Simmons, W. H.

A few years later I became connected with a large animal charcoal works, in which sulphate of ammonia was obtained as a by-product.

From Scientific American Supplement, No. 717, September 28, 1889 by Various

The most common varieties met with are lampblack, gas carbon, wood charcoal, animal charcoal and coke.

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

Case hardening is a process that converts the surface of wrought iron into steel, which is accomplished by placing them in a box filled with bone dust, animal charcoal, or leather hoofs, etc.

From Modern Machine-Shop Practice, Volumes I and II by Rose, Joshua

This is sometimes called animal charcoal, and is made by charring bones and animal refuse.

From An Elementary Study of Chemistry by McPherson, William