Patent classifications
C
CHEMISTRY; METALLURGY
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C01
INORGANIC CHEMISTRY
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C01B
NON-METALLIC ELEMENTS; COMPOUNDS THEREOF;; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
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13/00
Oxygen; Ozone; Oxides or hydroxides in general
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C01B13/14
Methods for preparing oxides or hydroxides in general
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C01B13/18
by thermal decomposition of compounds, e.g. of salts or hydroxides
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