Sentence examples for weak acidity from inspiring English sources
Tannic acid has weak acidity due to the phenolic hydroxyl groups in the structure, and can adsorb to TiO2 surface chemically in form of monolayer.
However, it should be noted that while these results indicate that Si dissolved more readily at lower pH values, due to the weak acidity of carbonic acid, the apparent activation energies were all close in value.
The high activity of both catalysts is related to vicinal silanol groups and silanol nests with weak acidity and negligible Brønsted acid sites.
Once dissolved in water, it shows weak acidity but a strongly acid taste which affects sweetness and provides a fruity tartness for which it is widely used to complement fruit flavours in the food and beverage industry.
Tannic acid is a type of polyphenol with weak acidity due to the numerous phenol groups in the structure.
4 However, problems such as low catalytic activity because of weak acidity, complicated preparation, and lack of a continuous range of acidic and basic catalytic sites often significantly limit their application in organic reactions.
Although the hydrogen exchange analysis illustrated in Figure 4 indicates six residues with exchange rate constants below 10 M−1 s−1, these slow exchange rates predominantly reflect the weak acidities of the solvent-accessible conformers for those amides rather than the rarity of those solvent-exposed states.
We found that the Ni/Al2O3 catalyst modified by 2 wt.% P exhibited the weakest acidity whilst demonstrating excellent coke resistance and stability over 100 h in the DRM reaction.
The weaker acidity of N(1 -H and small hydrogen bond angle in complex I result in it being 5.1 -Handmol-1 lesmallable thydrogenlexes II.
Additionally, new matrix shows weaker acidity and more open pore structures which is in favor of the diffusion of carbonium ions.
On the other hand, SiO2-TiO2 sanalyzednalyzed in the same way show a very much weaker acidity with signals ascribable to chemisorbed Py detectable after degassing up to 100 °C.
