[ ^9^ ] 



Of the Marine Acib. 



The mixtures of this acid and water are attended with little or 

 no heat, and the fp. gravities are fuch as may be found by calcu- 

 lation. See 33 Roz. 242. Mr. Berthollet, among his experiments 

 on oxyginated muriatic acid, Mem. Par. 1785, relates that having 

 precipitated a folution of nitrated filver with 500 grains of common 

 muriatic acid, whofe fp. gray, was 1,141, he obtained 547 grains 

 of muriated filver, confequently 100 grains of this acid would 

 have afforded 109,4 of muriated filver. Now, a^ we fhall hereafter 

 fee, 100 grains of muriated filver contain 16,54 of real marine acid, 

 therefore 109,4 grains of muriated filver fliould contain i8,02; 

 and by my table 100 grains of the muriatic acid 1,1414 contains 

 18,57 of real acid. 



CHAP. 



