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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C01B33/113
Silicon oxides; Hydrates thereof
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C01B33/12
Silica; Hydrates thereof, e.g. lepidoic silicic acid
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C01B33/14
Colloidal silica, e.g. dispersions, gels, sols
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C01B33/141
Preparation of hydrosols or aqueous dispersions
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C01B33/1415
by suspending finely divided silica in water
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C01B33/1417
an aqueous dispersion being obtained
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