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
Rafiqul Islam (scientist) Rafiqul Islam (scientist) Rafiqul Islam ( – 5 March 2018) was a Bangladeshi physician and medical scientist. He is known for the discovery of food saline (Orsaline) for the treatment of Diarrhea. The British Medical Journal The Lancet referred to its invention of saline as "the most important invention of medical science in the twentieth century". Islam was born in 1936 in the then British India's Bengal Presidency (now Bangladesh) in Chauddagram Upazila, Comilla. He passed MBBS from Dhaka Medical College and Hospital in 1965. Later, he received high education in Trinity Medicine and Hygiene in Trinity (UK). After passing