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  2. Glossary of chemical formulae - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_chemical_formulae

    This is a list of common chemical compounds with chemical formulae and CAS numbers, indexed by formula. This complements alternative listing at list of inorganic compounds . There is no complete list of chemical compounds since by nature the list would be infinite.

  3. List of CAS numbers by chemical compound - Wikipedia

    en.wikipedia.org/wiki/List_of_CAS_numbers_by...

    K 2 S: potassium sulfide: 1312–73–8 K 2 SO 4: potassium sulfate: 7778–80–5 K 2 S 2 O 5: potassium metabisulfite: 16731–55–8 K 2 S 2 O 7: potassium pyrosulfate: 7790–62–7 K 2 S 2 O 8: potassium persulfate: 7727–21–1 K 2 Se: potassium selenide: 1312–74–9 K 2 SiF 6: potassium hexafluorosilicate: 16871–90–2 K 2 SiO 4 ...

  4. Potassium sulfide - Wikipedia

    en.wikipedia.org/wiki/Potassium_sulfide

    It can be produced by heating K 2 SO 4 with carbon : K 2 SO 4 + 4 C → K 2 S + 4 CO. In the laboratory, pure K 2 S may be prepared by the reaction of potassium and sulfur in anhydrous ammonia. [4] Sulfide is highly basic, consequently K 2 S completely and irreversibly hydrolyzes in water according to the following equation: K 2 S + H 2 O → ...

  5. Lists of molecules - Wikipedia

    en.wikipedia.org/wiki/Lists_of_molecules

    The following is an index of list of molecules organized by time of discovery of their molecular formula or their specific molecule in case of isomers: List of compounds By number of carbon atoms in the molecule

  6. Potassium - Wikipedia

    en.wikipedia.org/wiki/Potassium

    Potassium is a chemical element; it has symbol K (from Neo-Latin kalium) and atomic number 19. It is a silvery white metal that is soft enough to easily cut with a knife. [ 9 ] Potassium metal reacts rapidly with atmospheric oxygen to form flaky white potassium peroxide in only seconds of exposure.

  7. IUPAC nomenclature of organic chemistry - Wikipedia

    en.wikipedia.org/wiki/IUPAC_nomenclature_of...

    In chemical nomenclature, the IUPAC nomenclature of organic chemistry is a method of naming organic chemical compounds as recommended [1] [2] by the International Union of Pure and Applied Chemistry (IUPAC). It is published in the Nomenclature of Organic Chemistry (informally called the Blue Book). [3]

  8. Glossary of chemistry terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_chemistry_terms

    Also acid ionization constant or acidity constant. A quantitative measure of the strength of an acid in solution expressed as an equilibrium constant for a chemical dissociation reaction in the context of acid-base reactions. It is often given as its base-10 cologarithm, p K a. acid–base extraction A chemical reaction in which chemical species are separated from other acids and bases. acid ...

  9. List of chemical databases - Wikipedia

    en.wikipedia.org/wiki/List_of_chemical_databases

    Organic Compounds National Institute of Advanced Industrial Science and Technology (AIST), Japan Organic compounds Spectra:IR Raman MASS ESR 1 H NMR 13 C NMR SDBS No curated "SDBS". 34,000 Serum Metabolome Database: The Metabolomics Innovation Centre: found in blood serum "Serum Metabolome DB". 4,651 Solvent Selection Tool ACS Green Chemistry ...