Abstract
A method is described for the determination of residual amounts of anionic surface-active reagents, used as flotation promoters, in mineral flotation liquors. The method is equally effective for the long carbon chain carboxylates and the anionic non-soapy surface-active agents. The reagent used is the cationic copper(II) triethylenetetramine complex, which reacts in alkaline solution with anionic surface-active agents to give an adduct that can be extracted into an isobutanol-cyclohexane mixture. The copper associated with the surface-active anion in the extract is determined photo-metrically as the coloured complex using diethylammonium diethyldithiocarbamate. Long chain carboxylates with carbon numbers from C14 to C22, as well as anionic non-soapy surface-active reagents, can be determined in the range 0·2 to 10 p.p.m. The effect of a number of likely interferences has been investigated.
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.
