Acetylene of 180°. Acetylene was discovered in 1836 by Edmund Davy, who identified it as a "new carburet of hydrogen". It was rediscovered in 1860 by French chemist Marcellin Berthelot, who coined the name "acétylène". Berthelot's empirical formula for acetylene (CH), as well as the alternative name "quadricarbure d'hydrogène" ("hydrogen quadricarbide"), were incorrect because chemists at that time used the wrong atomic mass for carbon (6 instead of 12). Berthelot was able to prepare this gas by passing vapours of organic compounds (methanol, ethanol, etc.) through a red-hot tube and collecting the effluent. He also found that acetylene was formed by
Mary O'Connell (1778-1836) England in April 1836 to offset the negative coverage. She went to Tunbridge Wells, Kent to take the waters in May 1836, returning to Derrynane in August. O'Connell died on 31 October 1836 at Derrynane, and was buried at the O'Connell tomb on the Abbey Island. A portrait of her by John Gubbins hangs in Derrynane House. Her correspondence is held as part of the O'Connell collection in the National Library of Ireland and in the University College Dublin Archives. Mary O'Connell (1778-1836) Mary O'Connell (25 September 1778 – 31 October 1836) was the wife of Daniel O'Connell. Mary O'Connell