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
What Is Love? (EP) What Is Love? (EP) What Is Love? (stylized as What is Love?) is the fifth extended play (EP) by South Korean girl group Twice. The EP was released on April 9, 2018 by JYP Entertainment and is distributed by Iriver. It includes the lead single of the same name produced by Park Jin-young. Twice members Jeongyeon, Chaeyoung, and Jihyo also took part in writing lyrics for two songs on the EP. The reissue of "What Is Love?", titled "Summer Nights", was released on July 9, 2018. On February 26, 2018, JYP Entertainment confirmed that Twice planned to release a new