title: [Kinetic sorption of nicotinic acid by anionites].
abstract: Studies of the kinetic sorption of nicotinic acid have demonstrated that the ionites AH-22, AH-31 and IR-45 absorb it quantitatively from water solutions. The static exchange capacity of nicotinic acid makes 3.5 mmole/g for AH-22 and IR-45 and 2.0 mmole/g for AH-31 and remains unchanged after ionite sterilization. Ionite AH-22 absorbs also quantitatively nicotinic acid from reaction mixtures used in its microbiological synthesis from 3-methyl pyridine. Formic acid (2n) desorbs entirely nicotinic acid from the above ionites. The sorption of nicotinic acid on AH-22 and IR-45 ionites is associated with diffusion processes; there is no chemical interaction between nicotinic acid and the ionites tested.
mesh_terms: D000837:Anion Exchange Resins; D001665:Binding Sites; D007475:Ion Exchange Resins; D007700:Kinetics; D009539:Nicotinic Acids; D012117:Resins, Synthetic
chemical_list: D000837:Anion Exchange Resins; D007475:Ion Exchange Resins; D009539:Nicotinic Acids; D012117:Resins, Synthetic; C011575:AH 31; C011573:AH 22; C011576:IR-45
vernacular_title: O kinetike sorbtsii nikotinovoĭ kisloty nekotorymi anionitami