Abstract
The new method to determine F - is based on the alteration of the glass surface which possesses no wettability when it is dipped into chromic acid cleaning mixture containing HF. The drop of chromic mixture which forms on the glass surface has a convexity depending upon F - concentration. Measures of the contact angle not directly of this drop but of an bubble (captive bubble) which appears at a bottom of a glass tube. into the test solution, are carried out. Approprriate devices allow even the microdetermination of fluorine. Boric acid and silicic acid are the only reagents able to affect the accuracy of this method.
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.
