Abstract
A method is described for the determination of acid and water soluble fluoride in some commercial fertilizers. The ground samples are stirred with water or with hydrochloric acid of different concentrations, filtered, citrate added as complexing agent, and then measured with an ion-selective electrode. With most of the investigated samples it was seen that the more concentrated the acid (up to 1.00 M HCl) the more fluoride was found in the solution, and this was supposed to be the same as the total amount. The relative standard deviation was usually between 0.5 and 1.5%. The recovery of added fluoride to some samples was between 97 and 100%. The results from this method were compared with the results from a reference method, and there was good correlation between them.
Sign-in/Register to access full text options 
Free) 
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 call
