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GENERAL PROPERTIES OF BASES

Bases change the color of litmus paper to blue. [Pg.108]

Bases do not react with most metals. However, the strong bases (KOH, NaOH) react with amphoteric metals, such as aluminum Al, zinc Zn. For example, [Pg.108]

Some molecules and ions act as acids or bases depending on the conditions of the reaction and are called amphoteric. [Pg.109]

A water molecule acts as an acid when it donates a proton, and acts as a base when it accepts a proton, as given below  [Pg.109]

The word alkali or the adjective alkaline are frequently used to refer to all bases, since most common bases are alkalis. [Pg.109]


Compare the general properties of acids with the general properties of bases. [Pg.466]

What are some general properties of bases Include both chemical and physical properties in your answer. [Pg.325]

Alkyd resins are usually referred to by a brief description based on certain classification schemes. Erom the classification the general properties of the resin become immediately apparent. Classification is based on the nature of the fatty acid and oil length. [Pg.31]

The way that Pn peptides self-assemble is important for polypeptides and proteins amyloid-type structures are believed to have the same core stmcture, and in fact the propensity to self-assemble in this manner is hypothesized to be a general property of polypeptides [52]. It is therefore unsurprising that systems featuring this motif are common. In recent years, a push towards the use of peptide-based self-assembled materials has led to increasing interest in extending their functionality by derivatising them. [Pg.46]

To understand the extraordinary potential for DNA to be utilized as a material in construction processes, the general properties of this biomolecule will first be discussed. In addition, examples of naturally occurring nucleic acid-based nanostructures will be described that are of great importance both for cellular processes and conventional applications in molecular biotechnology. [Pg.392]

Doyen [158] was one who theoretically examined the reflection of metastable atoms from a solid surface within the framework of a quantum- mechanical model based on the general properties of the solid body symmetry. From the author s viewpoint the probability of metastable atom reflection should be negligibly small, regardless of the chemical nature of the surface involved. However, presence of defects and inhomogeneities of a surface formed by adsorbed layers should lead to an abrupt increase in the reflection coefficient, so that its value can approach the relevant gaseous phase parameter on a very inhomogeneous surface. [Pg.326]

A base, in terms of the ionic theory, is a substance which yields hydroxy ions as the only negative ion, when dissolved in an ionizing solvent (usually water). The general and characteristic properties of bases are predominantly due to the properties of hydroxy ions. [Pg.587]

GENERAL PROPERTIES OF IONIC LIQUIDS AS ELECTROLYTES FOR CARBON-BASED DOUBLE LAYER CAPACITORS... [Pg.96]

The hexose-6-phosphate transporter UhpT protein also contains 12 transmembrane (TM) regions. Based on experimental data, Hall and Maloney [113] conclude that TM11 spans the membrane as an a-helix with approximately two-thirds of its surface lining a substrate translocation pathway. It is suggested that this feature is a general property of carrier proteins in the Major Facilitator Superfamily, and that, for this reason, residues in TM11 will serve to carry determinants of substrate selectivity [113]. [Pg.295]

The unequal basicities of the three nitranilines can be illustrated by the following experiment. It is a general property of the salts of weak bases—as well as of weak acids—that in aqueous solution they are stable only if an excess of acid (or alkali) is present. When such solutions are diluted with water hydrolysis occurs as a result of the operation of the law of mass action. In the present case this phenomenon shows itself in the appearance of the yellow colour characteristic of the bases and finally, since the nitranilines are sparingly soluble in water, in their precipitation in crystalline form. The weaker the base the smaller is the amount of water which must be added in order to make the hydrolysis perceptible. [Pg.173]

Lewandowski, A. and Galmski, M., General Properties Of Ionic Liquids As Electrolytes For Carbon-based Double Layer Capacitors, New Carbon Based Materials for Electrochemical Energy Storage Systems, Barsukov et al. (Eds), Springer, The Netherlands, 2006, 73-83. [Pg.71]

In the preceding sections, we have tried to show that our theory has a very wide range of applicability to various physical and chemical problems. The theory is essentially based upon the two equations, (16) and (18). In addition to classical examples such as treated in Sections III-V, it can, with suitable generalizations, be applied to quantum-mechanical systems as discussed in the later sections. In a previous paper of the author,3 an analysis was made on the equation of the type (16) in order to investigate the structure and some general properties of the inverse operator (17). This analysis showed, in particular, how the narrowing occurs when the... [Pg.124]

What is the relationship between the P-x and T-x diagrams Thermodynamics dictates a deep symmetry, based on general properties of the P-T-x surface for a binary solution (Fig. 7.8). [Pg.249]

Let s proceed with the second case as the best studied area. In this case the analysis should be based on the general properties of flow of abnormally viscous liquids in tubing and channels under isothermal and non-isothermal conditions. Generally, the process of moulding may be considered as being isothermal when the following condition is satisfied ... [Pg.129]

The Hamiltonian Eq. (7) provides the basis for the quantum dynamical treatment to be detailed in the following sections, typically involving a parametrization for 20-30 phonon modes. Eq. (7) is formally equivalent to a class of linear vibronic coupling (LVC) Hamiltonians which have been used for the description of excited-state dynamics in molecular systems [66] as well as the Jahn-Teller effect in solid-state physics. In the following, we will elaborate on the general properties of the Hamiltonian Eq. (7) and on quantum dynamical calculations based on this Hamiltonian. [Pg.193]

Structural information on the three types of SOD have revealed structure-function relationships. In this chapter, we describe the phylogenic distribution, gene regulation and general properties of the three types of SOD. The reaction mechanism of SOD is also discussed based on its structure. [Pg.192]

While the viscous model for the evolution of protoplanetary disks has had some success in matching some of the general properties of protoplanetary disks, such as the observed mass accretion rates and effective temperatures, the exact source of the viscosity remains the subject of ongoing studies. Currently, the most popular candidates for driving the mass transport in protoplanetary disks are the magneto-rotational instability (MRI) and gravitational instability. A third candidate, shear instability, has also been proposed based on laboratory experiments of rotating fluids (Richard Zahn 1999), but questions remain as to whether these results can be extended to the scale of protoplanetary disks. [Pg.76]


See other pages where GENERAL PROPERTIES OF BASES is mentioned: [Pg.108]    [Pg.108]    [Pg.118]    [Pg.108]    [Pg.108]    [Pg.118]    [Pg.59]    [Pg.63]    [Pg.208]    [Pg.5]    [Pg.477]    [Pg.345]    [Pg.307]    [Pg.465]    [Pg.578]    [Pg.552]    [Pg.303]    [Pg.156]    [Pg.950]    [Pg.387]    [Pg.411]    [Pg.320]    [Pg.78]    [Pg.61]    [Pg.422]    [Pg.27]    [Pg.229]    [Pg.19]    [Pg.398]    [Pg.822]    [Pg.574]   


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