Patent classifications
C
CHEMISTRY; METALLURGY
Load children
C01
INORGANIC CHEMISTRY
Load children
C01B
NON-METALLIC ELEMENTS; COMPOUNDS THEREOF;; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
Load children
25/00
Phosphorus; Compounds thereof
Load children Filter patents View analytics View as hierarchy
C01B25/16
Oxyacids of phosphorus; Salts thereof
Load children Filter patents View analytics View as hierarchy
C01B25/185
Preparation neither from elemental phosphorus or phosphoric anhydride nor by reacting phosphate-containing material with an acid, e.g. by reacting phosphate-containing material with an ion-exchange resin or an acid salt used alone
Filter patents View analytics View as hierarchy