Gooch and Gates — Decomposition of Hydrochloric Acid. 439 



the mat of a porcelain filtering crucible, as shown in figure 2. 

 This apparatus was so adjusted that standardized acid might 

 be run in from the leveler to replace the anode liquid slowly 



TO HE/^PEL 

 EVELUEH. 



£« OR 



R.USBEK 



CONNECTION- 

 STOPPERED THUTU 



TUBE 



ILTER P>ON\P. 



filtered away to keep the composition of the electrolyte 

 constant and to collect detached and colloidal silver chloride. 



Table I. — Anodes of Silver. 



Concen- Eatio of Approximate 



Cur- Poten- tration : Hydro- Oxygen Area of 



Time rent tial parts gen Oxygen to Hy- Silver Anode 



min. amp. ■ volt in 1000 cm 3 cm 3 drogen cm 2 



31 0-085 

 31 0-080 

 30 0-080 



30 



30 0-050 

 j 0-050 

 | 0-045 

 30 0-070 

 30 0-070 



28- 

 83- 



90 



-89 

 -32 

 -90 



60-65 

 62-65 



0-73 

 0-73 

 0-73 



0-36* 



0'36f 



0-73* 

 0-73* 



23-94 

 22-40 

 22-44 



B 



14-9 



12-9 



20-1 

 20-2 



3-44 

 2-60 

 0-32 



0-9 



0-03 



3-75 

 none 



0-143 

 0-116 

 0-014 



0-060 

 0-002 

 0-186J 



o-oooS 



1-0 

 21-4J 

 14'0§ 



201 



201 

 20f 



* Nearly N/50. 

 of anode fresh, 

 ver crucible. 



f Nearly N/100. \ Anode previously used. § Surface 

 About 3 grs. of precipitated silver in porcelain. ^[ Sil- 



