C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
Introduced: September 1968
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- INORGANIC CHEMISTRY
- Subclass:
- NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
Description
C01B covers the production, purification, and chemical processing of non-metallic elements and their inorganic compounds, including halogens, oxygen, nitrogen, sulfur, phosphorus, carbon, and silicon, along with their oxides, halides, sulfides, and other derivatives. This classification encompasses industrial chemical processes such as synthesis, separation, and refining methods specific to these elements and their compounds. It excludes metallic elements and their compounds (covered by C01C), as well as organic compounds derived from non-metallic elements (classified elsewhere in organic chemistry).
Scope Notes
Glossary: base-exchange the replacement of one cation absorbed on a material by another binary compound binary compounds a compound containing and limited to two distinct chemical elements direct bonding requires a bond between two adjacent atoms 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 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. isomorphous zeolites isomorphous zeolite compounds isomorphous to zeolites wherein the aluminum or silicon atoms in the framework are partly or wholly replaced by atoms of other elements, e.g. by gallium, germanium, phosphorus or boron metal metals any element other than a non-metal metal hydride metal hydrides compound containing only metal and hydrogen molecular sieve molecular sieves materials (e.g. zeolitic or mesoporous) having cavities and channels which by their size allow some molecules to pass through, but prevent others 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. zeolites zeolite (i) cystalline aluminosilicates with base-exchange and molecular sieve properties, having three-dimensional [3D], microporous lattice framework structure of tetrahedral oxide units; (ii) compounds isomorphous to those of the former category, wherein the aluminium or silicon atoms in the framework are partly or wholly replaced by atoms of other elements, e.g. by gallium, germanium, phosphorus or boron. | Limiting references: Treatment of inorganic materials to enhance their pigmenting or filling properties; Preparation of carbon black Intentional preparation of carbon dioxide by a fermentation process or the use of an enzyme Preparation of elements or inorganic compounds except carbon dioxide, by a fermentation process or the use of an enzyme Production of non-metallic elements or inorganic compounds by electrolysis or electrophoresis | Application references: Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
Related Keywords
19 direct subcodes
Child Classifications
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- C01B 11/00 Oxides or oxyacids of halogens; Salts thereof
- C01B 13/00 Oxygen; Ozone; Oxides or hydroxides in general
- C01B 15/00 Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
- C01B 17/00 Sulfur; Compounds thereof
- C01B 19/00 Selenium; Tellurium; Compounds thereof
- C01B 21/00 Nitrogen; Compounds thereof
- C01B 23/00 Noble gases; Compounds thereof
- C01B 25/00 Phosphorus; Compounds thereof
- C01B 3/00 Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen; Reversible storage of hydrogen
- C01B 32/00 Carbon; Compounds thereof
- C01B 33/00 Silicon; Compounds thereof
- C01B 35/00 Boron; Compounds thereof
- C01B 37/00 Compounds having molecular sieve properties but not having base-exchange properties
- C01B 39/00 Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
- C01B 4/00 Hydrogen isotopes; Inorganic compounds thereof prepared by isotope exchange, e.g. NH + D → NHD + HD
- C01B 5/00 Water
- C01B 6/00 Hydrides of metals; Monoborane or diborane; Addition complexes thereof
- C01B 7/00 Halogens; Halogen acids
- C01B 9/00 General methods of preparing halides