COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE EARTH METALS

Introduced: September 1968

Classification Context

Section:: CHEMISTRY; METALLURGY
Class:: INORGANIC CHEMISTRY
Subclass:: COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE EARTH METALS

Description

C01F covers the preparation, purification, and characterization of inorganic compounds containing beryllium, magnesium, aluminum, calcium, strontium, barium, radium, thorium, or rare earth metals as principal constituents. This subclass includes oxides, hydroxides, salts, halides, and other inorganic derivatives of these metals, along with their manufacturing processes and physical or chemical properties. Applications span glass manufacturing, ceramics, pharmaceuticals, catalysts, and metallurgical intermediates. Adjacent classes address the metals themselves in elemental form (C01B for other non-metals and their compounds) and organic coordination complexes or chelates of these metals (typically classified under organic chemistry sections).

Additional Content

Glossary

Binary compound Binary compounds A compound containing and limited to two distinct chemical elements. Inorganic compound inorganic compounds A compound devoid of a carbon atom and containing a non-metallic element or a compound containing a carbon atom, and satisfying one of the following criteria: the compound cannot have a carbon atom having direct bonding to another carbon atom; or the compound cannot have direct bonding between a carbon atom and a halogen or hydrogen atom; or the compound cannot have direct bonding between a carbon atom and a nitrogen atom by a single or double bond. The following are exceptions to the above and are to be considered as inorganic compounds: compounds consisting of only carbon atoms, (e.g. fullerenes), cyanogen, cyanogen halides, cyanamide, phosgene, thiophosgene, hydrocyanic acid, isocyanic acid, isothiocyanic acid, fulminic acid, unsubstituted carbamic acid, and salts of the previously mentioned acids and which contain the same limitations as to a carbon atom. Metal metals Any element other than a non-metal Moiety A specific part of a molecule. Non-metal non-metals The elements of hydrogen, carbon, halogen (fluorine, chlorine, bromine, iodine and astatine), oxygen, sulfur, phosphorus, silicon, nitrogen, boron, selenium, tellurium and noble gases (helium, neon, argon, krypton, xenon and radon) Preparation Preparations Covers synthesis, purification, separation, stabilisation or use of additives, unless a separate place is provided in the classification scheme.

Limiting references

Metal hydrides Salts of oxyacids of halogens Peroxides, salts of peroxyacids Sulfides or polysulfides of magnesium, calcium, strontium or barium Thiosulfates, dithionites, polythionates Compounds containing selenium or tellurium Binary compounds of nitrogen with metals Azides Metal amides Nitrites Phosphides Salts of oxyacids of phosphorous Carbides Compounds containing silicon Compounds containing boron Compounds having molecular sieve properties but not base-exchange properties Compounds having molecular sieve and base exchange properties (crystalline zeolites) Cyanides Salts of cyanic acid Salts of Cyanamide Thiocyanates Double sulfates of magnesium with sodium or potassium Double sulfates of magnesium with lithium Double sulfates of magnesium with rubidium, caesium or francium Production of lime, magnesia or dolomite Burning, calcining lime, magnesite or dolomite Dehydration of gypsum for calcium sulfate cements Preparation of elements or inorganic compounds except carbon dioxide by using microorganisms or enzymes Obtaining metal compounds from mixtures in a metallurgical process Production of non-metallic elements or inorganic compounds by electrolysis or electrophoresis

Related Keywords

other inorganic compounds of ALKALI METALSother inorganic compounds of ALKALINE EARTH METALSother inorganic compounds of ALUMINIUMother inorganic compounds of BARIUMother inorganic compounds of BERYLLIUMother inorganic compounds of CAESIUMother inorganic compounds of CALCIUMinorganic CARBONATESinorganic compounds of FRANCIUMinorganic compounds of HAFNIUMother inorganic compounds of LANTHANIDESother inorganic compounds of LITHIUMother inorganic compounds of MAGNESIUMother inorganic compounds of POTASSIUMother inorganic compounds of RADIUMother inorganic compounds of RUBIDIUMother inorganic compounds of SODIUMother inorganic compounds of STRONTIUMinorganic SULFATESSULFIDE(S) of other metalsother inorganic compounds of THORIUM

8 direct subcodes

Child Classifications

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C01F 1/00 Methods of preparing compounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or the rare earths, in general
C01F 11/00 Compounds of calcium, strontium, or barium
C01F 13/00 Compounds of radium
C01F 15/00 Compounds of thorium
C01F 17/00 Compounds of rare earth metals
C01F 3/00 Compounds of beryllium
C01F 5/00 Compounds of magnesium
C01F 7/00 Compounds of aluminium

Top Applicants

Top 10 applicants by patent filingsfor class C01, 2013–2023, worldwide · Source: EPO PATSTAT

CHINESE ACADEMY OF SCIENCES 5,794
SINOPEC (CHINA PETROCHEMICAL CORPORATION) 3,286
LG CHEM KR 2,689
BASF (BADISCHE ANILIN & SODA FABRIK) DE 1,669
CENTRAL SOUTH UNIVERSITY 1,531
KMUST (KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY) 1,252
SUMITOMO METAL MINING COMPANY JP 1,073
ZHEJIANG UNIVERSITY 1,061
PANASONIC INTELLECTUAL PROPERTY JP 1,058
PANASONIC INTELLECTUAL PROPERTY 1,038