What is Nitroglycerin?
[[File:Nitroglycerin vzorec.png|thumb|Nitroglycerin molecule]] '''Nitroglycerin''', also known as '''nitroglycerine''' (UK spelling), '''trinitroglycerin''', '''trinitroglycerine''', '''1''','''2''','''3-trinitroxypropane''' and '''glyceryl trinitrate''', is a [[heavy]], [[colorless]], [[Oil|oily]], [[Explosive material|explosive]] [[liquid]] obtained by [[Nitrate|nitrating]] [[glycerol]]. It is very dangerous and easy to [[detonation|detonate]]. It was synthesized in 1847 by Italian chemist [[Ascanio Sobrero]]. In 1867 [[Alfred Nobel]] used it to make [[dynamite]] which for years was one of the most-used explosives in the world. == Manufacturing == Nitroglycerin is made using white fuming concentrated nitric acid and sulfuric acid.<ref>{{cite book |last1=Lewis |first1=Richard J., Sr |title=Hawley's Condensed Chemical Dictionary |url=https://archive.org/details/hawleyscondensed0000unse_w9g9 |date=15 March 2007 |publisher=John Wiley & Sons, Inc |location=United States |isbn=978-0-471-76865-4 |page=[https://archive.org/details/hawleyscondensed0000unse_w9g9/page/897 897] |edition=15th}}</ref> == Medical uses == Nitroglycerine is also used in some [[Medication|medicines]] because it is a [[Vasodilation|vasodilator]]. This means it makes the [[blood vessel]]s get wider. That makes it easier for [[blood]] to flow through them. Nitroglycerine is used mostly for [[Angina pectoris|angina]] and some [[Myocardial infarction|heart attacks]] caused by [[coronary artery disease]].<ref name=x>{{cite web |url=https://www.nlm.nih.gov/medlineplus/druginfo/meds/a601086.html |title=Nitroglycerine Sublingual |author=<!--Staff writer(s); no by-line.--> |date=October 15, 2015 |website=nlm.nih.gov |publisher=US. National Library of Medicine |accessdate=January 1, 2016 |quote=}}</ref> This is a disease that makes the blood vessels that bring blood to the heart become narrower. When the heart does not get enough blood and [[oxygen]], a person can have [[angina]] ([[chest pain]]) or a [[heart attack]]. Taking nitroglycerine makes the b