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REDUCING FLUIDS FOR REMOVING SILVER PIGMENTATION

A. W. Stillians, M.D.
JAMA. 1937;108(6):492. doi:10.1001/jama.1937.02780060058021.
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ABSTRACT

To the Editor:—  Dr. Cornbleet, in his communication published in The Journal Dec. 12, 1936, page 1989, criticizes the use of the term "reducing fluid" with reference to the mixture of potassium ferricyanide and sodium thiosulfate used in removing silver pigmentation from the skin. I have no doubt that the writer of the answer to the query which Dr. Cornbleet criticizes used the term "reducing fluid" in the same way that it was used by Dr. Lawless and myself in our articles on the subject, that is, a photographic reducing fluid, a fluid which reduces overexposed negatives. In this sense I believe Dr. Cornbleet will grant the propriety of the expression.On the other hand, how does Dr. Cornbleet know that the mixture used, containing 1 per cent potassium ferricyanide and 6 per cent sodium thiosulfate, is an oxidizing agent in the chemical sense? Other eminent chemists confess their uncertainty

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