Publication Date:
1979
Short description:
Assorbimento di alcune triazine simmetriche
su una bentonite di Uri (Sardegna) / Melis, Pietro; Cucchiarelli, Enrico. - In: STUDI SASSARESI. SEZIONE 3: ANNALI DELLA FACOLTÀ DI AGRARIA DELL'UNIVERSITÀ DI SASSARI. - ISSN 0562-2662. - 27:(1979), pp. 28-34.
abstract:
The adsorpition of six s-triazines of the chloro- and methoxy-analogue
series on a bentonite from Uri (Sardinia) was studied. The H-bentonite
shows a higher adsorption than the Na-bentonite. The order of adsorbabiIity
of chloro-s-triazines was trietazine > atrazine > propazine; by me·
thoxy-s-triazines it was simetone > atratone > prometone.
The amount of simetone adsorbed by the H-bentonite occurred in
excess of the CEC. The relationship between adsorption, solubility and
lenght of the lateral chain of the s-triazine was confirmed. The adsorption
was mainly due to van der Waals forces, H-bonding and ionic exchange.
series on a bentonite from Uri (Sardinia) was studied. The H-bentonite
shows a higher adsorption than the Na-bentonite. The order of adsorbabiIity
of chloro-s-triazines was trietazine > atrazine > propazine; by me·
thoxy-s-triazines it was simetone > atratone > prometone.
The amount of simetone adsorbed by the H-bentonite occurred in
excess of the CEC. The relationship between adsorption, solubility and
lenght of the lateral chain of the s-triazine was confirmed. The adsorption
was mainly due to van der Waals forces, H-bonding and ionic exchange.
Iris type:
1.1 Articolo in rivista
Keywords:
Bentonite; soils; triazine herbicides; Uri; Sardinia
List of contributors:
Melis, Pietro; Cucchiarelli, Enrico
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