Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Nomenclature table

To determine the reasonableness of the top and bottom compositions of a fractionation column, a Hengstebeck plot is fast and easy (Reference 4). First, select a heavy key component and determine the relative volatility (a) of all column components to the heavy key. The a can be otfeed or perhaps more accurately cc = (a,op oCboitom) - Plot In D/B versus In a and the component points should fall close to a straight line. If a fairly straight line does not result, the compositions are suspect. A nomenclature table is provided at the end of this chapter. [Pg.218]

A single alkane may have several different names a name may be a common nfflne, or it may be a systematic name developed by a well-defined set of rules. The most widely used system is lUPAC nomenclature. Table 2.6 summarizes the rules for alkanes and cycloalkanes. Table 2.7 gives the r-ules for naming alkyl groups. [Pg.96]

Mastocytomas and diffuse cutaneous mastocytosis are further manifestations of cutaneous mastocytosis (CM) [9]. Solitary mastocytomas are common in children. Most are present at birth or develop in infancy. These lesions are flat or mildly elevated, well demarcated, solitary yellowish red-brown plaques or nodules, typically 2-5 cm in diameter. Diffuse cutaneous mastocytosis is a rare disorder characterized by diffuse mast cell infiltration of large areas of the skin that presents in infants in the first year of life. Severe edema and leathery indurations of the skin leads to accentuation of skin folds (pseudo-lichenified skin) and a peau-dbrange-like appearance. Systemic complications include hypotension and gastrointestinal hemorrhage. Infants and young children with considerable mast cell infiltration of the skin sometimes exhibit blister formation in the first 3 years of life. MPCM and other forms of CM have been classified in a consensus nomenclature (table 1) [10]. [Pg.113]

PA700/19S RP has been studied in many different species, and many individual subunits were identified prior to realization that they were components of PA700. These factors have resulted in a diverse and confusing subunit nomenclature (Table 11.1). The rational and increasingly accepted Rpt/Rpn and S nomenclatures (see below) will be used in the current presentation. An introductory description of PA700/19S PR subunits follows immediately below. Additional details of subunit functions and regulatory features in proteolysis by the 26S proteasome are presented in later sections. [Pg.289]

According to the official nomenclature (Table 1) the S100A15 gene symbol has been withdrawn and replaced by the new approved gene symbol, S100A7L1. [Pg.116]

The thermal stress in binder burnout is the same as those discussed in Section 14.5.1. For a detailed treatment, please refer to that section. Here we give a brief description of the stress for an infinite plate, to specify the nomenclature. Table 15.8 gives the details of thermal stresses for plate, cylinder, and sphere geometries. [Pg.768]

The designation of central atom and ligands, generally straightforward in mononuclear complexes, is more difficult in polynuclear compounds where there are several central atoms in the compound to be named, e.g. in polynuclear coordination compounds, and chain and ring compounds. In each case, a priority order or hierarchy has to be established. A hierarchy of functional groups is an established feature of substitutive nomenclature Table VI shows an element sequence used in compositional and additive nomenclature. [Pg.17]

Sometimes it may be necessary or preferable to consider a parent hydride in which several (four or more) skeletal carbon atoms of a hydrocarbon have been replaced by main group elements. In this method of skeletal replacement the heteroatoms are designated by the a terms of replacement nomenclature (Table X) cited in the order given by Table VI and preceded by the appropriate locant(s). The rules for locant numbering are specified in Section IR-6.2.4.1 and this nomenclature is fully described in Sections P-21.2 and P-22.2 of Ref. 3. [Pg.231]

Table 26-1). In addition, the carbon atoms may be labeled with Greek symbols, with a being adjacent to the carboxyl group and 0) being farthest away. In the A-system, fatty acids are abbreviated according to the number of carbon atoms, the number of double bonds, and the position(s) of double bond(s). For example, linoleic acid, which contains 18 carbons and two unsaturated bonds between carbons 9 and 10 and between carbons 12 and 13, could be written as Ci8 2 Using the T - or (D-system, linoleic acid would be abbreviated to Ci8 2n-6, where only the first carbon forming the unsaturated pair is written. The Geneva or systematic classification is a third system of nomenclature (Table 26-1). Table 26-1). In addition, the carbon atoms may be labeled with Greek symbols, with a being adjacent to the carboxyl group and 0) being farthest away. In the A-system, fatty acids are abbreviated according to the number of carbon atoms, the number of double bonds, and the position(s) of double bond(s). For example, linoleic acid, which contains 18 carbons and two unsaturated bonds between carbons 9 and 10 and between carbons 12 and 13, could be written as Ci8 2 Using the T - or (D-system, linoleic acid would be abbreviated to Ci8 2n-6, where only the first carbon forming the unsaturated pair is written. The Geneva or systematic classification is a third system of nomenclature (Table 26-1).
We adopt Basore s nomenclature (Table 1) for different forms of crystalline silicon. ... [Pg.2132]

That the resolution of the enantiomers of chiral drugs should be considered as a topic in its own right in a treatise on pharmaceutical analysis should come as no surprise. The importance of chirality in many fields of natural and applied science is well established [1]. In pharmaceutical analysis, this topic which commands its own nomenclature (Table 3.1) is especially important, as is apparent from the proportion of drugs on the market that are chiral (Table 3.2). [Pg.74]

Thus, the EC numbers provide unique identifiers for enzyme functions, and give us useful keyword entries in database searches (http //www.chem.qmw.ac.uk/iubmb/ enzyme/). Enzyme nomenclature/common names and properties are also available at ENZYME (http //www.expasy.org/enzyme) and BRENDA (http //www.brenda.uni-koeln. de). IntEhz (http //www.ebi.ac.uk/intenzy) is the integrated enzyme database and enzyme nomenclature. Table 11.1 lists some enzyme resource sites providing general information. [Pg.324]

The otoliths are an overdamped second-order system whose structure is shown in Figure 64.1a. In this model the otoconial layer is assumed to be rigid and nondeformable, the gel layer is a deformable layer of isotropic viscoelastic material, and the fluid endolymph is assumed to be Newtonian fluid. A small element of the layered structure with surface area dA is cut from the surface and a vertical view of this surface element, of width Ax, is shown in Figure 64.1b. To evaluate the forces that are present, free body diagrams are constructed of each elemental layer of the small differential strip. See the nomenclature table for a description of all variables used in the following formulas (for derivation details see Grant et al., 1984 and 1991). [Pg.1078]

Soaps. The saponification of natural oils and fats produces glycerol and soaps. The saponification of fats by fresh ashes is, probably, the oldest organic chemical reaction known. This is the reason why fatty acids are still named using ancient names differing from the TUPAC nomenclature. Table 2.1 lists the historical names along with the lUPAC names of the fatty acids, whose sodium or potassium salts are the constituents of soaps. [Pg.12]

Classification of mitochondrial disorders using McKusick numbers is difficult, due to the complexity of the defects. McKusick numbers for diseases defined by a mtDNA mutation have recently been adapted (see nomenclature table). [Pg.523]

INTRODUCTION TO CHEMICAL NOMENCLATURE Table 4. Some common groups... [Pg.50]


See other pages where Nomenclature table is mentioned: [Pg.276]    [Pg.97]    [Pg.2280]    [Pg.223]    [Pg.110]    [Pg.15]    [Pg.41]    [Pg.23]    [Pg.2035]    [Pg.49]    [Pg.97]    [Pg.251]    [Pg.1594]    [Pg.223]    [Pg.1590]    [Pg.2284]    [Pg.148]    [Pg.1080]    [Pg.81]    [Pg.608]    [Pg.1167]    [Pg.1145]   
See also in sourсe #XX -- [ Pg.61 ]




SEARCH



Alcohols, nomenclature table)

Formaldehyde, 31 (Table nomenclature

Nomenclature hydrocarbons, Table

Nomenclature periodic table

Nucleosides nomenclature, Table

Nucleotides nomenclature, Table

© 2024 chempedia.info