title: Anatase: important industrial white pigment and date-marker for artwork.
abstract: Barium sulfate, BaSO4, is shown by Raman microscopy to be readily identifiable in early (1920s) industrially produced anatase (TiO2) and thus, if present, may act as a date marker for early industrial anatase. Later processes (except that for producing Titanox B) did not involve usage of barium sulfate. The matter is relevant to the possible dating of certain artwork.
authors.affiliation: Christopher Ingold Laboratories, University College London, 20 Gordon Street, London WC1H 0AJ, UK.
authors.forename: Sonal
authors.initials: S
authors.lastname: Brown
authors.forename: Robin J H
authors.initials: RJ
authors.lastname: Clark
mesh_terms: D001154:Art / Q000266:history*; D001466:Barium Sulfate / Q000032:analysis* / Q000266:history; D004396:Coloring Agents / Q000032:analysis* / Q000266:history; D049673:History, 20th Century; D013059:Spectrum Analysis, Raman; D014025:Titanium / Q000032:analysis* / Q000266:history
chemical_list: D004396:Coloring Agents; C009495:titanium dioxide; D001466:Barium Sulfate; D014025:Titanium