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
Oman Oil Marketing Company lubricants throughout the Sultanate. Oman Oil Marketing Company Oman Oil Marketing Company SAOG (Omanoil) was launched in October 2003, along with its new brand identity, when Oman Oil Company acquired shares of what was formally known as BP Oman in December 2003. Today, it is the only 100 percent Omani owned fuels marketing company, 49% of which is owned by Oman Oil Company. Other shareholders include Oman Cement Company, BankMuscat and Dhofar International Development and Investment Holding Company. The Chairman of the Board of directors is Salim Abdullah Al Rawas and the Chief Executive Officer is Omar Ahmad Salim Qatan.