Display stability

Crosslinked polymers of vinyl-substituted imidazolecarboxylic acids have been studied as chelating resins for heavy metal ions (78MI11101). For example, polymer (75) displays stabilities and capacities in the order Cu2+ > Ni2+ > Cd2+ > Zn2+ > Mg2+ which is similar to that observed with other amino acid chelating resins. The unusual feature of the polymer, however, is that exceptionally strong complexing abilities are maintained even in strongly acidic media. Polymer (75) also displayed potential utility for the removal of mercury(II) ions from aqueous media. 

Fig. 5. Left AG/Area plot of trial oxide and O adlayers as a function of temperature T at PO2 = 10—12 atm a pressure characteristic of UHV experiments. Right an ab initio phase diagram displaying stability regions (minimum values of AG/Area) as a function of T and PO2. Characteristic Industry and UHV pressures are indicated.

Ionic liquids are molten salts that at higher temperatures display stability and significantly increase conductivity. 

AljCuMg) displayed stabilization of passivity when polarized in salt solution containing the inhibitor (Fig. 4.7 shows the forward and reverse scans for AljCuMg). The anthors claimed that the demonstrated mixed inhibition mechanism of the inhibitor wonld inhibit localized corrosion of AA2024-T3 through inhibiting the rate of oxygen reduction combined with reduction in the rate of dissolution of anodic phases. 

The thermal and hydrothermal stabilities of the MeAPO, MeAPSO, ElAPO, and ElAPSO families identified in Tables II and III are more diverse than those of the AIPO4 and SAPO families. Here, the stability depends on both chemical composition and crystal form. Many species display stability similar to that of AlP04 s and SAPO s, while others show significantly reduced crystal retentions when exposed to high temperatures or severe hydrothermal conditions. 

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