An old name originally used for rubber vulcanized with antimony pentasulfide. When heated, the antimony pentasulfide reacted with the rubber to yield sulfur for vulcanization leaving residual antimony trisulfide as a red colorant (Brady 1971).
Synonyms and Related Terms
caucho rojo (Esp)
G.S.Brady, Materials Handbook, 10th edition, McGraw-Hill, New York, 1971.