the black, carbonaceous compound into which bones are transformed by calcination in close vessels; -- called in addition animal charcoal. It really is utilized as a decolorizing product in filtering sirups, extracts, etc., so that as a black pigment. See Ivory-black, under Black.
black material containing char in the form of carbonized bone tissue; used as a black pigment
the black colored, carbonaceous material into which bones tend to be converted by calcination in close vessels; -- labeled as additionally animal charcoal. Its made use of as a decolorizing material in filtering sirups, extracts, etc., so when a black pigment. See Ivory black, under Ebony.
black compound containing char in the form of carbonized bone; utilized as a black pigment