MECHANISM OF DEATH 



343 



solutions of different acids have the same disinfectant 

 value, because their hydrogen ion concentrations differ. 

 But the Ke normal solutions of the stronger acids are 

 completely, and therefore, equally dissociated, their 



Table 106. — Decrease op Disinfectant Power with Decrease op 



Ionization 

 (All solutions He molar) 



Survivors after 

 Salt mixture 8 minutes 



HgCla 8 



HgCla + NaCl 32 



HgClo + 2NaCl 124 



HgCla + 3NaCl 282 



HgCl2 + 4NaCl 382 



HgCl2 + 4.6NaCl 410 



HgCl2 + 6NaCl 803 



HgClz + lONaCl 1,087 



Table 107. — Disinfectant Power op Acids Tested on Spores 

 OP B. anthrads 



Acid 



Concen- 

 tration 



Survivors after 



20 

 min. 



120 

 min. 



5.42 

 hrs. 



8.25 

 hrs. 



Concen- 

 tration 



Sur- 

 vivors 

 after 

 2.3 

 days 



HCl 



HCIO4 



HNO3 



CHCI2CO2H 



CCI3CO2H 



HF 



HBr 



H2SO4 



H2SO4 



H3PO4 



HCO2H 



CH3CO2H 



(C02H)2 



normal 

 normal 

 normal 



normal 



normal 



normal 



normal 



molar 



molar 



normal 



normal 



normal 



191 



385 



123 







243 

 139 











217 











4 



491 



424 



2,500 

 97 





 

 1 



405 



285 



1,090 



2,280 



2,780 



34 



Ke normal 

 Ke normal 

 3^6 normal 

 }4 normal 

 He normal 



160 



283 



54 



396 



382 



