iron buff

Noun

 * 1) A yellow ancient artificial iron oxide made by oxidating iron in vinegar, one of the oldest man-made pigments, often used in staining textiles.

Translations

 * French: jaune d'oxide de fer hydraté
 * German: Rostgelb
 * Italian: giallo di ossido di ferro
 * Portuguese: ferro afinado
 * Spanish: amarillo de hierro