Oxidation inorganic nomenclature

Elemental composition, ionic charge, and oxidation state are the dominant considerations in inorganic nomenclature. Coimectivity, ie, which atoms are linked by bonds to which other atoms, has not generally been considered to be important, and indeed, in some types of compounds, such as cluster compounds, it caimot be appHed unambiguously. However, when it is necessary to indicate coimectivity, itaUcized symbols for the connected atoms are used, as in trioxodinitrate(A/,A/), O2N—NO . The nomenclature that has been presented appHes to isolated molecules (or ions). Eor substances in the soHd state, which may have more than one crystal stmcture, with individual connectivities, two devices are used. The name of a mineral that exemplifies a particular crystal stmcture, eg, mtile or perovskite, may be appended. Alternatively, the crystal stmcture symmetry, eg, rhombic or triclinic, may be cited, or the stmcture may be stated in a phrase, eg, face-centered cubic. 

In choice A, KC103 is potassium chlorate, not perchlorate. In choice B, CuO is copper (II) oxide, to distinguish it from copper (I) oxide, Cu20. In choice C, the formula for aluminum sulfate is A12(S04)3. In D, the formula for magnesium phosphate is Mg3(P04)2. If you missed these, review inorganic nomenclature and refer to pages 94 and 95 of this book to become familiar with common ions and their charges. 

There is no use of, no less dependence on, the admittedly empirical [87] concept of "oxidation number", as is the practice in IUPAC s inorganic nomenclature. 

Recognizing the empirical nature of oxidation numbers in inorganic chemistry nomenclature, and ending the use of this antiquated concept. 

The concept of oxidation number is interwoven into the fabric of inorganic chemistry in many ways, including nomenclature."... 

Moreover, the original concept of an integer number that quantified oxidation has remained the cornerstone of "inorganic chemistry" nomenclature — at least as it is practiced by IUPAC. [10] This is notwithstanding the fact that conceptual problems are attenuated when the familiar oxidation numbers that "work" for one compound (or ion) are used to determine the oxidation number of other compounds. 

The name perferryl , indicating an oxidation state beyond that of ferryl, iron(IV), is not recommended by the current IUPAC guidelines for the nomenclature of inorganic chemistry [47], This name would only be defensible if both oxygen were attached to the iron, which they are not. The use of this misleading name should be discontinued. 

Stock system (6.2, 16.2) The nomenclature system for inorganic compounds in which the oxidation state (or charge for a monatomic cation) is represented as a Roman numeral in the name of the compound, stoichiometry (10.1) The determination of how much a reactant can produce or how much of a product can be produced from a given quantity of another substance in a reaction. 

When atomic theory developed to the point where it was possible to write specific formulae for the various oxides and other binary compounds, names reflecting composition more or less accurately then became common no names reflecting the composition of the oxosalts were ever adopted, however. As the number of inorganic compounds rapidly grew, the essential pattern of nomenclature was little altered until near the end of the 19th century. As a need arose, a name was proposed and nomenclature grew by accretion rather than by systematization. 

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