Isolation of Fluorine:Symbol - F Atomic number -9 Period Number: 2Valency –1 Atomic mass–19 Group Number: 17Fluorine does not arise free in nature. It takes place in the combined form.Dennis’ Method:
This was introduced by Dennis, Veeder and Rochow in the year 1931. In this, fluorine is made by the electrolysis of fused sodium or potassium hydrogen fluoride (i.e., perfectly dry) Electrolysis is taken out between graphite electrodes within a V-shaped electrically heated copper tube. The ends of the tube are enclosed with copper caps in which the graphite electrodes are fixed by bakelite cement. The copper tube is thickly lagged to avoid loss of heat.
KHF2 → KF + HFHF → H+ + F¯2H+ + 2e– → H2 (At cathode)2F – – 2e– → F2 (At anode)
Figure: Preparation of fluorine
Fluorine released at the anode is passed via U-tube having sodium fluoride. This eliminates the hydrogen fluoride vapors coming with fluorine.
NaF +HF → NaHF2
Latest technology based Chemistry Online Tutoring Assistance
Tutors, at the www.tutorsglobe.com, take pledge to provide full satisfaction and assurance in P Block elements homework help via online tutoring. Students are getting 100% satisfaction by online tutors across the globe. Here you can get homework help for P Block elements, project ideas and tutorials. We provide email based P Block elements homework help. You can join us to ask queries 24x7 with live, experienced and qualified online tutors specialized in P Block elements. Through Online Tutoring, you would be able to complete your homework or assignments at your home. Tutors at the TutorsGlobe are committed to provide the best quality online tutoring assistance for Inorganic-Chemistry Homework Help and assignment help services. They use their experience, as they have solved thousands of the Chemistry assignments, which may help you to solve your complex issues of P Block elements. TutorsGlobe assure for the best quality compliance to your homework. Compromise with quality is not in our dictionary. If we feel that we are not able to provide the homework help as per the deadline or given instruction by the student, we refund the money of the student without any delay.
Theory and lecture notes of Uncertainty all along with the key concepts of uncertainty, Contingent Claims, State-Preference Model, Contingent Commodities. Tutorsglobe offers homework help, assignment help and tutor’s assistance on Uncertainty.
tutorsglobe.com types of salts assignment help-homework help by online coordination compounds tutors
Filters tutorial all along with the key concepts of Filter topology, Passive topologies, Active filter, Single element filter, L-FILTER, Multiple Element Filters, roles of capacitor and inductor, Single Element Topology
Adaptive Radiation of Chordates tutorial all along with the key concepts of kinds of adaptive radiation, General adaptation, Environmental change and Archipelagoes
other properties of liquids tutorial all along with the key concepts of vaporization, differences between evaporation and boiling, trouton's rule, liquid crystals and liquid crystal phases
theory and lecture notes of static characteristics iii, all along with the key concepts of inverter design, operation and output characteristic, transfer characteristic and logic voltages. tutorsglobe offers homework help, assignment help and tutor’s assistance on static characteristics iii.
Flame Spectroscopy Definition of Flame Spectroscopy, Working Principle of Flame Emission Spectrometry, Working Principle of Flame Atomic Absorption Spectrophotometry, Interference, Application of the Techniques, Atomic Absorption Analysis
tutorsglobe.com kuhne’s fermentation tube experiment assignment help-homework help by online respiration tutors
Theory and lecture notes of Concurrency problems all along with the key concepts of concurrency problems, Lock management, Lost Updates, Dirty Read, Un-repeatable Read. Tutorsglobe offers homework help, assignment help and tutor’s assistance on concurrency problems.
tutorsglobe.com stages of cell mediated graft refusal assignment help-homework help by online blood group typing tutors
The marketing race for “more megapixels” would like us to think that “more is better”. It is not that simple, unfortunately.
a computer as displayed in diagram below carry out mainly five main operations or functions irrespective of their size and make.
Life tables and K-factor analysis tutorial all along with the key concepts of Life Tables, stage-dependent life tables, Features which can be computed from Life Tables, Factor Analysis, Kind of factor analysis, Types of factoring, Estimation of k-values in natural populations
alkanoic acids tutorial all along with the key concepts of characteristics of alkanoic acids, oxidation of primary alkanols and uses of alkanoic acids
tutorsglobe.com general characteristics assignment help-homework help by online viruses tutors
1941734
Questions Asked
3689
Tutors
1482141
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!