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624. Os.—Bone.

SOURCE.—The skeleton of vertebrate animals.

CONSTITUENTS.—Calcium phosphate 40 to 67 per cent., which includes a small percentage of calcium carbonate; phosphates of magnesium and other salts are also present. With the salts are also found organic substances yielding gelatine on boiling with water. The basic substance of the bony structure contains two chief constituents, namely, an organic substance, ossein, and the so-called bone earth inclosed in or combined with it. Ossein is generally considered identical with collagin of the connective tissue.

Preparation of Ossein: that portion of bone that is left undissolved after treatment with HCl.

USES.—For preparing bone-black, animal charcoal, and phosphates.


A Manual of Organic Materia Medica and Pharmacognosy, 1917, was written by Lucius E. Sayre, B.S. Ph. M.



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