The Real Value of the Medicinal Peroxide of Hydrogen Prepa- 

 rations Found in the Market. 



By H. ENDEMANN, PH. D., CHEMIST. 

 Formerly with the Health Department of New Yoi'k City. 



My attention having repeatedly been called to several reports and analyses made by 

 different chemists and published by some medical journals, I concluded to examine all 

 the brands of peroxide of hydrogen which I could find on the market, in order to ascer- 

 tain the real value of each when intended to be used as an antiseptic remedy, both 

 internally and externally. 



The reports on* the subject which have come to my knowledge are quite contradic- 

 tory, and my object is to impart to the medical profession the results of my experi- 

 nients, which have been made on fourteen fresh samples, purchased by me in dupli- 

 cate, directly from the manufacturers or their selling agents. 



These brands have been tested for the volume of available oxygen, the amount of 

 residue, the degree of acidity, and the amount of soluble baryta salts contained there- 

 in, as per following table : 



BRANDS. 



O-TO to -.3 

 < t3 w f^ rt 





■SBo" 

 -•3 2 



1 o o 2 



,^^> 



•< a 

 CLm 



i-t CL 





O <z^ 



8B^ 



■ p n 

 _ — Ul 

 O u) 

 • ■<in 

 o o ^ 



^Bo 

 32.C 

 El. 3. 2". 



D.O o" 

 ? Wn 



■ o n 



: D-B 

 : » ^. 



'. wB 

 : o n 





O IT 



hjp 



01 



1 John Bene's Peroxide of Hydrogen Medicinal 



2 Hydrozone 



3 Larkin & Scheffer's Peroxide of Hydrogen Med 



4 Mallinckrodt's Peroxide of Hydrogen Med 



5 Marchand's Peroxide of Hydrogen Medicinal 



6 McKesson & Robbins' Peroxide of Hydrogen Med... 



7 Merck & Co.'s Peroxide of Hydrogen Medicinal 



8 Oakland Chemical Co.'s Peroxide of Hydrogen Med 



9 Peuchot's Peroxide of Hydrogen Medicinal 



10 Powers & Weightman's Perox of Hydrogen Med 



11 Pyrozone, 3 per cent 



12 Rosengarten & Sons' Perox of Hydrogen Med 



13 Smith, Kline & French, Perox of Hydrogen Med 



14 E- R. Squibb, s Peroxide of Medicinal 



None 

 None 

 None 

 None 

 None 

 None 

 None 

 o 0017 

 0.0018 

 None 

 None 

 Nono 

 None 

 None 



By referring to this table it is easily understood that sample No. 2, "hydrozone," is 

 far superior to any other brand which has ever been made, not only on account of its 

 containing a much larger amount of available oxygen, but also owing to the presence 

 of a small quantity of several essential oils, the respective nature of which could not 

 be determined, very likely because they had been submitted to the oxidizing action of 

 peroxide of hydrogen before being used to make ''hydrozone." 



I attribute to this small quantity of e-ssential oils the great superiority of hydrozone 

 over any other brands of H2 02 as a healing agent. 



When hydrozone is diluted with distilled vrater, in the proportion of half and half, 



