Journal of Dairy Science Vol. 7 No. 4 318-329
© 1924 by American Dairy Science Association ®
IV. Sodium Hypochlorite
The Phenol Coefficient and Relative Disinfecting Power of Sodium Hypochlorite1
Harper F. Zoller and
Sylvia M. Eaton
Research Department of The Nizer Laboratories Company, Detroit, Michigan
ABSTRACT
- The phenol coefficient of stable sodium hypochlorite is very high, varying between 42 and 300 with the organisms employed.
- The hydrogen ion concentration of the disinfectant in the exposure tube has little or no influence upon the phenol coefficient of NaOCl throughout the ranges employed.
- Mercuric chloride is not as good a bactericidal agent as sodium hypochlorite.
- NaOCl has a high phenol coefficient on the tubercle organism. The value of antiformin depends largely upon its content of alkalinity.
FOOTNOTES
1 This paper was read at the annual meeting of the Society of American Bacteriologists, December, 1922, at Detroit, Mich.
Copyright © 1924 by the American Dairy Science Association ®.