BAIRD &L TATLOCK. (LOM)ON) LTD. 





H 



4318 



5? 



4315-4316 4317 4319a 



4315 Tube, Ozone induction, for use with sulphuric acid 



4316 Jar for ditto 



4317 Improved Form of Ozone Apparatus, as devised by T- S. S. Brame, Esq., Royal Naval 



College .. .. .. .. 12 6 



The inner tube (A! and the outer jacket (c) are filled with a dilute solution of sulphuric acid, one part HjSO^ 

 + 4H,O by volume, and the Rhumkorff coil connected to electrodes P, P, or P', p'. The U tube (D) is partly filled 

 with a coloured solution of strong H^SO^ which serves as a pressure gauge. 



The apparatus may be used to prepare ozone for demonstrations, the ozonised gas passing off through the 

 delivery tube. 



The formation of ozone by sparking can be shown by connecting the wires from coil to P', P'. 



By filling the apparatus with dry oxygen and passing the silent discharge the contraction in volume is readily 

 shown, and on sparking through the ozonised gas the increase in volume may be demonstrated. 



Satisfactory results are ensured by first slowly passing the oxygen through strong H,,SO 4 . After a few 

 minutes a rapid stream of oxygen will sweep out the ozone formed for experimental purposes. 



4318 Condensation Bulb, two stopcocks, for sulphurous acid . . . . . . . . 040 



4319 Condensation Tube, two stopcocks, for cyanogen, A or B ..040 



4320 4321 



4320 Condensation Tube, three stopcocks, for cyanogen, A 



4321 Tube for Fractional Distillation, with one bulb 

 A4321 Tube for Fractional Distillation, with two bulbs . . 



A4321 



060 

 006 

 008 



805 



