Bone-ash



a white ash obtained by calcining bones, used as a fertilizer and in the making of bone china.
Historical Examples

Manures and the principles of manuring Charles Morton Aikman
Encyclopaedia Britannica, 11th Edition, Volume 16, Slice 3 Various
The Silversmith’s Handbook George E. Gee
A Textbook of Assaying: For the Use of Those Connected with Mines. Cornelius Beringer and John Jacob Beringer
Elements of Agricultural Chemistry Thomas Anderson
A Textbook of Assaying: For the Use of Those Connected with Mines. Cornelius Beringer and John Jacob Beringer
A Dictionary of Arts, Manufactures and Mines Andrew Ure
Elements of Agricultural Chemistry Thomas Anderson
Manures and the principles of manuring Charles Morton Aikman

noun
the residue obtained when bones are burned in air, consisting mainly of calcium phosphate. It is used as a fertilizer and in the manufacture of bone china

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  • Boneblack

    a black, carbonaceous substance obtained by calcining bones in closed vessels, used as a black pigment, a decolorizing agent, etc. Historical Examples The Philippine Agricultural Review Various noun a black residue from the destructive distillation of bones, containing about 10 per cent carbon and 80 per cent calcium phosphate, used as a decolorizing agent and […]



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    bone block

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