title: On two letters from Caspar Neumann to John Woodward revealing the secret method for preparation of Prussian blue.
authors: Gesimat GmbH, Berlin.
authors: Alexander
authors: A
authors: Kraft
mesh_terms: D000468:Alkalies / Q000266:history; D002621:Chemistry / Q000193:education / Q000266:history; D015709:Correspondence as Topic / Q000266:history; D005858:Germany / Q000208:ethnology; D049671:History, 18th Century; D007202:Indicators and Reagents / Q000266:history; D008420:Manufactured Materials / Q000266:history; D010150:Paint / Q000266:history; D011540:Prussian Blue Reaction / Q000266:history; D012108:Research Personnel / Q000193:education / Q000266:history
chemical_list: D000468:Alkalies; D007202:Indicators and Reagents