Asid-Base Properties of Phenol Formaldehyde Sorbentsстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:It is shown that at a temperature of 295 K, phenol groups of phenol formaldehyde sorbents are characterized by the value pK ∼ 13.0–13.7. It is found that raising the temperature to 343 K reduces the pK value by one. It is concluded that the reason for the lower acidity of phenol formaldehyde sorbents relative to phenol in an aqueous solution is the smaller amount of firmly bound water.