Calcium hydroxyapatite

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Description

A white, odorless, tasteless powder. Bone is primarily composed of calcium hydroxyapatite mixed with calcium carbonate and organic binders. Calcium hydroxyapatite is used in the manufacture of milk glass, as a polishing powder, as a mordant and as a buffer.

See also apatite.

Synonyms and Related Terms

tribasic calcium phosphate; tricalcium orthophosphate; tricalcium phosphate; bone ash

XRD

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SEM

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EDS

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Other Properties

Soluble in mineral acids. Insoluble in water, ethanol, acetic acid.

Composition Ca10(PO4)6(OH)2
CAS 1306-06-5
Melting Point 1670
Density 3.18
Molecular Weight mol. wt. = 1004.69
Refractive Index 1.63

Hazards and Safety

Nonflammable.

Mallinckrodt Baker: MSDS

Sources Checked for Data in Record

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 1741