Table 134. 149 



VAPOR PRESSURE OF SOLUTIONS OF SALTS IN WATER.* 



The first column gives the chemical formula of the salt. The headings of the other columns give the number of 

 gramme-molecules of the salt in a litre of water. The numbers in these columns give the lowering of the 

 vapor pressure produced by the salt at the temperature of boiling water under 76 centimetres barometric pressure. 



* Compiled from a table by Tammann, " Mdm. Ac. St. Petersb." 35, No. o, 1887. See also Referate, "Zeit. f. 

 Phys." ch. 2, 42, 1886. 



Smithsonian Tables. 



