2/0 Table 276. 



INTERNATIONAL ATOMIC WEIGHTS AND ELECTROCHEMICAL EQUIVA- 

 LENTS. 



The International Atomic Weiglits are quoted from the report of the International Committee 

 on Atomic Weights ("Jour. Am. Chem. Soc.," vol. 32, p. 3, 1910). 



With the exception of the value given for silver and that corresponding to valence 2 for copper, 

 the electrochemical equivalents given in this table have been calculated from the atomic weights 

 and one or two of the more common apparent valences of the substance. The value given for 

 silver is that which was adopted by the International Congress of Electricians at Chicago in 1894. 



Substance. 



Aluminum 

 Antimony . 



Argon . . 

 Arsenic 



Barium 

 Bismuth . 



Boron . . 

 Bromine . 



Cadmium . 

 Caesium . 

 Calcium . 

 Carbon 

 Cerium 



Chlorine . 



Chromium 

 « 



Cobalt . . 

 « 



Columbium 

 Copper 



Dysprosium 

 Erbium 



Europium . 

 Fluorine . 

 Gadolinium 

 Gallium 

 Germanium 



Glucinum . 

 Gold , . 

 Helium 

 Hydrogen . 

 Indium . . 



Iodine . . 

 Iridium 

 Iron . . . 



Krypton . 



Lanthanum 

 Lead . . 

 Lithium 

 Lutecium . 

 Magnesium 

 Manganese 



Symbol. 



Al 

 Sb 



A 



As 



Ba 

 Bi 



B 

 Br 



Cd 

 Cs 

 Ca 

 C 

 Ce 



CI 

 Cr 



u 



Co 



Cb 

 Cu 



Dy 

 Er 



Eu 

 F 

 Gd 

 Ga 

 Ge 



Gl 



Au 

 He 

 H 

 In 



I 



Ir 

 Fe 



Kr 



La 



Pb 

 Li 

 Lu 

 Mg 

 Mn 



Relative 



atomic wt. 



Oxygen = i6. 



27.1 

 120.2 



39-9 

 74.96 



137-37 

 208.0 



II.O 



79.92 



1 1 2.40 



132.81 



40.09 



12.00 



140.25 



3546 



52.0 



(( 



58-97 



93-5 

 63;57 



162.S 

 167.4 



152.0 

 19.0 



157-3 

 69.9 

 72.5 



9.1 

 197.2 



4.0 



1.008 

 114.8 



126.92 

 1 93- 1 



S5;85 



83.0 



139.0 



207.10 



7.00 



174.0 



24.32 



54-93 



Relative 



atomic wt. 



Hydrogen =: i. 



26.9 

 1 19-3 



39-6 

 74-4 



136.27 

 206.3 



10.9 



79.28 



III. 51 



131.76 



39-77 

 11.99 



139-14 



35-19 

 51.6 



58.50 



92.8 



63.07 

 t( 



161. 2 

 166.1 



150.8 



18.9 



156.1 



69-3 

 71.9 



9-03 

 195-7 



4.0 



1. 000 

 113-9 



125.91 

 191.6 



5541 



82.4 



137-9 



205.46 



6.94 



172.6 



24-13 



54-49 



Valence. 



Electrochemical 

 equivalent in grammes 

 per coulomb X looo. 



.0936 

 .4152 

 .2491 



.2590 

 •1554 



.7118 

 .7185 



43" 

 .0380 

 .8283 



0.5824 



1-3764 

 0.2077 



•0313 

 .7267 



•3675 

 .1797 

 .0900 

 .3061 

 .2041 



•1937 

 .6588 

 .3290 



.8624 



.1968 

 .2414 



.0471 

 .68 1 8 



.0104 

 0.3966 



1-3153 



0.5003 



.2894 



.1929 



0.7202 

 1.0731 

 0.0725 



.1260 

 .2846 

 .1423 



Smithsonian Tables. 



