Abstract
Examination of the influence of dodecylpyridinium iodide on the formation of silver iodide sols (conc. 5 × 10−4 M), by turbidimetric measurements, revealed the presence of four coagulation regions with intermediate regions in which stable sols were formed. The form of the sol particles and the structure of the coagula, formed under these conditions, has been investigated in detail using the electron microscope. Selected area microelectron-diffraction and X-ray diffraction examination of the various regions showed that the silver iodide particles generally had a hexagonal structure but under some conditionsγ-cubic silver iodide was also present. It was found that at low concentrations of surface active agent (10−6M) the rate of sol particle growth was enhanced but at higher concentrations (10−3M) it was greatly retarded. The phenomena observed were interpreted on the basis of the strong adsorption of dodecylpyridinium ions onto the negatively charged silver iodide surface.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
