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The main structure of chemical names according to IUPAC nomenclature. The International Union of Pure and Applied Chemistry (IUPAC) has published four sets of rules to standardize chemical nomenclature. There are two main areas: IUPAC nomenclature of inorganic chemistry (Red Book) IUPAC nomenclature of organic chemistry (Blue Book)
The names "caffeine" and "3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione" both signify the same chemical compound. The systematic name encodes the structure and composition of the caffeine molecule in some detail, and provides an unambiguous reference to this compound, whereas the name "caffeine" simply names it.
Although most compounds are referred to by their IUPAC systematic names (following IUPAC nomenclature), ... (NH 4) 2 Ce(NO 3) 6; Cerium hexaboride – CeB 6;
The continuing development of the standard has been supported since 2010 by the not-for-profit InChI Trust, of which IUPAC is a member. Version 1.06 and was released in December 2020. [8] Prior to 1.04, the software was freely available under the open-source LGPL license. [9] Versions 1.05 and 1.06 used a custom license called IUPAC-InChI Trust ...
CoSO 4 (H 2 O) 7 → CoSO 4 (H 2 O) 6 + H 2 O CoSO 4 (H 2 O) 6 → CoSO 4 (H 2 O) + 5 H 2 O CoSO 4 (H 2 O) → CoSO 4 + H 2 O. The hexahydrate is a metal aquo complex consisting of octahedral [Co(H 2 O) 6] 2+ ions associated with sulfate anions (see image in table). [3] The monoclinic heptahydrate has also been characterized by X-ray ...
Green vitriol is iron(II) sulfate heptahydrate, FeSO 4 ·7H 2 O; blue vitriol is copper(II) sulfate pentahydrate, CuSO 4 ·5H 2 O and white vitriol is zinc sulfate heptahydrate, ZnSO 4 ·7H 2 O. Alum , a double sulfate of potassium and aluminium with the formula K 2 Al 2 (SO 4 ) 4 ·24H 2 O , figured in the development of the chemical industry.
The groups are on carbon atoms 3 and 9. As there are two, we write 3,9-dione. The numbering of the molecule is based on the ketone groups. When numbering from left to right, the ketone groups are numbered 3 and 9. When numbering from right to left, the ketone groups are numbered 15 and 21. 3 is less than 15, therefore the ketones are numbered 3 ...
Na 22 K(SO 4) 9 (CO 3) 2 Cl hexagonal P 6 3 /m: a = 10.4896 c = 21.2415 2024.1 ... name formula formula weight crystal system space group unit cell volume density