* Antiseborrheic & Antidandruff Medicated Shampoo for Dogs and Cats, featuring zinc pyrinthione, salicylic acid and colloidal sulfur
for the treatment of seborrheic dermatitis.
No cause of the acidification was found, but when I added hydrochloric acid to a sample, release of colloidal sulfur
showed that the acidification was caused by thiosalts formed by oxidation of pyrite in the mine's concentrator, and the rest is history.
The conversion of cyanide to thiocyanate occurs by means of the specific enzyme rhodanase (which catalyses the formation of thiocyanate from cyanide in the presence of sodium thiosulfate or colloidal sulfur
) (Martensson and Sorbo, 1978; Frankenberg, 1980).