bone black


bone black
bone black [bōn′blak΄]
a fine charcoal made by burning animal bones in closed containers: used as a pigment, in refining sugar, etc.: also boneblack [bōn′blak΄] n.

* * *

also called  Bone Char, or Bone Charcoal,  

      a form of charcoal (q.v.) produced by heating bone in the presence of a limited amount of air. It is used in removing coloured impurities from liquids, especially solutions of raw sugar. Bone black contains only about 12 percent elemental carbon, the remainder being made up principally of calcium phosphate and calcium carbonate.

* * *


Universalium. 2010.

Look at other dictionaries:

  • Bone black — Bone Bone (b[=o]n; 110), n. [OE. bon, ban, AS. b[=a]n; akin to Icel. bein, Sw. ben, Dan. & D. been, G. bein bone, leg; cf. Icel. beinn straight.] 1. (Anat.) The hard, calcified tissue of the skeleton of vertebrate animals, consisting very largely …   The Collaborative International Dictionary of English

  • bone|black — «BOHN BLAK», noun, or bone black, a black powder made by carbonizing bones in closed containers. It is used to remove color from liquids and as a coloring matter …   Useful english dictionary

  • bone-black — boneˈ black noun The carbonaceous remains of bones heated in the absence of air • • • Main Entry: ↑bone …   Useful english dictionary

  • bone black — [bōn′blak΄] a fine charcoal made by burning animal bones in closed containers: used as a pigment, in refining sugar, etc.: also boneblack [bōn′blak΄] n …   English World dictionary

  • bone black — noun black substance containing char in the form of carbonized bone; used as a black pigment • Syn: ↑bone char, ↑animal black, ↑animal charcoal • Hypernyms: ↑char * * * noun or bone …   Useful english dictionary

  • bone black — kaulų anglys statusas T sritis chemija apibrėžtis Kaulų koksavimo kietasis produktas. atitikmenys: angl. bone black; bone charcoal rus. костяной уголь …   Chemijos terminų aiškinamasis žodynas

  • bone black — noun Date: 1815 the black residue chiefly of tribasic calcium phosphate and carbon from bones calcined in closed vessels used especially as a pigment or as a decolorizing adsorbent in sugar manufacturing called also bone char …   New Collegiate Dictionary

  • bone-black — n. Ivory black, animal charcoal …   New dictionary of synonyms

  • bone black — SYN: animal charcoal …   Medical dictionary

  • Bone black — Костная чернь …   Краткий толковый словарь по полиграфии


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.