The New Encyclopaedia Britannica[1] Propaedia: outline of knowledge and guide to the Britannica.--[2]-[11] Micropaedia: ready reference and index.--[12]-[30] Macropaedia: knowledge in depth. |
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Page 285
Some of these chemical variants have mineral species names. Besides the
chemical variants of the calcium phosphate apatites, numerous compounds can
be synthesized that exhibit a structure identical or closely related to that of apatite
.
Some of these chemical variants have mineral species names. Besides the
chemical variants of the calcium phosphate apatites, numerous compounds can
be synthesized that exhibit a structure identical or closely related to that of apatite
.
Page 286
The density of chlorapatite is about 3.2, and the structure is similar to that of other
apatites but differs in the position of the halogen. Because the chloride ion is 1.8
A (one angstrom unit [A] equals 10~8 centimetre) in size, it lies between two of ...
The density of chlorapatite is about 3.2, and the structure is similar to that of other
apatites but differs in the position of the halogen. Because the chloride ion is 1.8
A (one angstrom unit [A] equals 10~8 centimetre) in size, it lies between two of ...
Page 769
The third step in the description of the molecular structure of a polymeric material
is the elucidation of the chain ... unit of structure (1) (in which X is any constituent)
may, for instance, be joined in two ways to give the structures (2) or (3).
The third step in the description of the molecular structure of a polymeric material
is the elucidation of the chain ... unit of structure (1) (in which X is any constituent)
may, for instance, be joined in two ways to give the structures (2) or (3).
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