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Searchable chemical reactions "About Reaxys". 118,000,000 Ref-DB Re-referenced Protein Chemical shift Database proteins from BioMagResBank Re-referenced NMR shift "Ref-DB". 2162 Rhea Swiss Institute of Bioinformatics: biochemical reactions ChEBI curated "Rhea". RÖMPP Thieme Gruppe "RÖMPP". RTECS: Registry of Toxic Effects of Chemical Substances
A chemical formula is a way of expressing information about the proportions of atoms that constitute a particular chemical compound, using chemical symbols for the chemical elements, and subscripts to indicate the number of atoms involved. For example, water is composed of two hydrogen atoms bonded to one oxygen atom: the chemical formula is H 2 O.
14455-29-9 Al 2 Cl 9 K 3: potassium aluminium chloride: 74978-20-4 Al 2 CoO 4: cobalt blue: 1333-88-6 Al 2 F 6: aluminium fluoride: 17949-86-9 Al 2 I 6: aluminium iodide: 18898-35-6 Al 2 MgO 4: magnesium aluminium oxide: 12068-51-8 Al 2 O: dialuminium monoxide: 12004-36-3 Al 2 O 2: dialuminium dioxide: 12252-63-0 Al 2 O 3: aluminium oxide: 1344 ...
A chemical substance is a unique form of matter with constant chemical composition and characteristic properties. [1] [2] Chemical substances may take the form of a single element or chemical compounds. If two or more chemical substances can be combined without reacting, they may form a chemical mixture. [3]
Any material that meets the definition in 49 CFR 171.8 for an elevated temperature material, a hazardous substance, a hazardous waste, or a marine pollutant. A new sub-class, class 9A, has been in effect since January 1, 2017. This is limited to the labeling of the transport of lithium batteries.
A chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus (+) and minus (−) signs.
The name DuPhos is derived from the chemical company that developed this type of ligand (DuP, DuPont) and the compound class of phospholanes (Phos) it belongs to. FOOF: Dioxygen difluoride, O 2 F 2, an extremely unstable compound which reacts explosively with most other substances – the nickname "FOOF" is a play on its formula. [47] Furfuryl ...
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 ...