{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,26]],"date-time":"2025-11-26T16:08:33Z","timestamp":1764173313432,"version":"3.41.0"},"reference-count":26,"publisher":"Canadian Science Publishing","issue":"3","license":[{"start":{"date-parts":[[1996,3,1]],"date-time":"1996-03-01T00:00:00Z","timestamp":825638400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/www.nrcresearchpress.com\/page\/about\/CorporateTextAndDataMining"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Can. J. Chem."],"published-print":{"date-parts":[[1996,3,1]]},"abstract":"<jats:p> The influence of pH (3.0\u20138.0), ionic strength (0.005\u20130.10\u2002M), and concentration (ca. 50\u2013300\u2002mg L<jats:sup>\u22121<\/jats:sup>) on the viscosimetric behaviour of solutions of a soil fulvic acid has been determined. The results show a complex influence of the concentration on the specific viscosity with maxima at about 80\u2013100\u2002mg L<jats:sup>\u22121<\/jats:sup> and a minimum at 140\u2013160\u2002mg L<jats:sup>\u22121<\/jats:sup>. The viscosity is minimum at pH ca. 6 and decreases when the ionic strength increases. The results are interpreted by a rod-type model from which the dimensions of fulvic acid molecules are calculated. Key words: soil fulvic acids, viscosity, configurational changes. <\/jats:p>","DOI":"10.1139\/v96-033","type":"journal-article","created":{"date-parts":[[2006,5,9]],"date-time":"2006-05-09T00:04:21Z","timestamp":1147133061000},"page":"295-299","source":"Crossref","is-referenced-by-count":17,"title":["Effect of concentration, pH, and ionic strength on the viscosity of solutions of a soil fulvic acid"],"prefix":"10.1139","volume":"74","author":[{"given":"F.","family":"Rey","sequence":"first","affiliation":[]},{"given":"M.A.","family":"Ferreira","sequence":"additional","affiliation":[]},{"given":"P.","family":"Facal","sequence":"additional","affiliation":[]},{"given":"A.A.S.C.","family":"Machado","sequence":"additional","affiliation":[]}],"member":"155","reference":[{"key":"p_1\/p_1_1","doi-asserted-by":"crossref","first-page":"266","DOI":"10.1097\/00010694-198005000-00002","volume":"129","author":"Ghosh M.","year":"1980","journal-title":"Schnitzer. 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