Cassius Purple
Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.
Summary
Cassius purple is a colloidal precipitate of stannic acid in which colloidal gold is dispersed, obtained by reducing a dilute solution of gold chloride with stannous chloride. Depending on the degree of gold dispersion, it exhibits colors ranging from red to violet and is used as a pigment in porcelain manufacture.
Encyclopedia entry (1928–1936)
CASSIUS PURPLE, a precipitate of colloidal stannic acid in which colloidal gold is dispersed. It is obtained by the reduction of a very dilute solution of gold chloride with stannous chloride. Depending on the degree of dispersion of the gold, Cassius purple is colored in various shades ranging from red to violet. It is used as a pigment in porcelain manufacturing.
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Cite this page
“Cassius Purple.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/cassius-purple/