formula

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formula

noun avenue, axiom, canon, code, expedient, fixed expression, form, formulary, maxim, method, mode, model, phrase, postulate, prescribed prooedure, prescription, principle, proposition, recipe, rubric, rule, standard, theorem, usage
Associated concepts: formula instruction
See also: arrangement, avenue, comment, criterion, directive, expedient, expression, form, guide, method, mode, phrase, prescription, principle, rule, system, usage
References in periodicals archive ?
Mixed spinel structure, when cations [Me.sup.2+] and [Fe.sup.3+] occupy both A and B positions; structural formula of this ferrite is [Me.sub.1-x.sup.2+][Fe.sub.x.sup.3+] [[Me.sub.x.sup.2+][Fe.sub.2-x.sup.3+]] [O.sub.4.sup.2-], where x is the degree of inversion [8].
is 163, molecular formula [C.sub.9] [H.sub.9] NS and structural formula [C.sub.6][H.sub.5] C[H.sub.2]-C[H.sub.2] NCS, Kjaer (1958) stated there is strong evidence that it is the predominant volatile isothiocyanate in root tissues of several Brassica species, such as turnip, black and white mustard, cabbage and horseradish.
1 2 FA87-85 FA87-225B n=4 n=2 Si[O.sub.2] 28.13 [+ or -] 0.56 26.70 [+ or -] 0.28 Ti[O.sub.2] 0.00 [+ or -] 0.00 0.00 [+ or -] 0.00 [Al.sub.2][O.sub.3] 17.24 [+ or -] 0.64 18.57 [+ or -] 0.06 FeO 25.96 [+ or -] 0.31 25.94 [+ or -] 1.52 MnO 0.36 [+ or -] 0.03 0.46 [+ or -] 0.10 MgO 16.57 [+ or -] 0.61 15.01 [+ or -] 0.98 CaO 0.12 [+ or -] 0.08 0.07 [+ or -] 0.10 [Na.sub.2]O 0.21 [+ or -] 0.05 0.22 [+ or -] 0.08 Total 88.60 [+ or -] 0.35 86.98 [+ or -] 0.20 Structural formula based on 10 cations and 13 (O, OH).
Furthermore, these data are in close agreement with the structural formula calculations made on the most altered samples (540 days, pH =13.5, 200[degrees]C):
The structural formula of the Colombian vermiculite estimated from its chemical composition and following the methodology described in Wilson M.
The calculated density based on the structural formula is 5.91 g/[cm.sup.3].
For each entry the following date are provided when available: the DPIM code, hazard rating, entry name; CAS number; DOT identification number; molecular formula; molecular `weight; line structural formula; a description of the material and physical properties; and synonyms.
This "spherand,' depicted as a structural formula (near right) and as it would appear as a molecule (far right), has a cylindrical cavity with a diameter of 3 angstroms and a length of 8 angstroms.
Arranged alphabetically from acacia to zinc stearate, each entry is described in terms of 22 topics, among them: nonproprietary names, synonyms, chemical name and CAS registry number, empirical formula and molecular weight and structural formula, functional category, supplications, physical appearance, pharmacopeial specifications, typical properties, stability and storage, incompatibilities, manufacture, safety, handling precautions, regulatory status, and related substances.
For each entry the following data are provided when available: the DPIM code, hazard rating, entry name; CAS number; DOT identification number; molecular formula; molecular weight; line structural formula; a description of the material and physical properties; and synonyms.

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