Sulfuric acid the Hellenistic alchemical works of Zosimos of Panopolis, in the treatise "Phisica et Mystica", and the Leyden papyrus X. Medieval Islamic era alchemists, Jābir ibn Hayyān (c. 721 – c. 815 AD, also known as Geber), Razi (865 – 925 AD), and Jamal Din al-Watwat (d. 1318, wrote the book "Mabāhij al-fikar wa-manāhij al-'ibar"), included vitriol in their mineral classification lists. Ibn Sina focused on its medical uses and different varieties of vitriol. Sulfuric acid was called "oil of vitriol" by medieval European alchemists because it was prepared by roasting "green vitriol" (iron(II) sulfate) in an iron retort. There are
National Linseed Oil Trust National Linseed Oil Trust The National Linseed Oil Trust of St. Louis, Missouri, was a major company trust formed in 1885 to protect linseed oil interests in the United States. Once used extensively in painting, the oil today is also commonly known as "flax seed oil". The Trust was dissolved in 1920 after the U.S. Department of Justice charged they broke the Sherman Antitrust Act. Omaha millionaire Clark Woodman was an influential director on the board. Viewed today as one of many imitators of the Standard Oil Company, the Linseed Oil Trust's peers included the Cotton Oil Trust, Lead Smeltering