albification
/ˌalbɪfɪˈkeɪʃn/Alchemy. Now historical or archaic
noun
The process of transforming a substance, or of being transformed, to a state of whiteness.
Origin
Late Middle English; earliest use found in Geoffrey Chaucer (c1340–1400), poet and administrator. From (i) Middle French albification (French albification) the action of whitening.