Abstracts - General and Inorganic Chemistry

1884 Journal of the American Chemical Society  
Equal electric currentb, passing through electrolysable salts, separate in equal times weights of the several metals proportional to their equivdents. Thus the same current precipitates at the negative pole 107-9 grammes of silver ; 103.5 of "lead ; 39.1 of potassium ; 68.5 grammes of barium. TO make them proportional to atomic weights, there should be for 107.9 grammes of siiyer, '107 of lead, i. e., double the weight actually thrown down. Also for 39.1 grammes of potassium, there should he
more » ... there should he 137 gr. of barium, which is not the case. In the same manner for electro-negative elements, the weights separated are 3.5.5 of chlorine, 8 of oxygen, and not 16 of oxygen. The idea of plurivalence is older than the new atomic notation. This idea is the same for chemists who use equivalent weights, as for those who prefer atomic weights, and has nothing to do with the fact that Paradsy's law is expressed more simply by equivalents than by atomic weights, in the case of electro-positive, as well a8 in the case of electro-negative elementj. ( Compte8 Rend. XCVIII. 264.)
doi:10.1021/ja02131a615 fatcat:3ouadhq5ufgb3m5cqrybnhnhxe