From sci.chem Tue Dec 3 15:10:30 1996 From: Frank_Hollis-1@sbphrd.com.see-sig (Triple Quadrophenic) In article <4iuxeHAf8AnyEwM6@poison.demon.co.uk>, eric@poison.demon.co.uk (Eric Lovett ) dusted off the quill, prised open the inkwell and wrote... > >Last Year, >During a lab, all which had to be done within a fume cupboard. A fellow >student removed, a bottle of conc ammonia, the fumes overpowered him, >and down he went like a sack of potatoes. >He is now during a Building & Surveying degree. Back when I was doing my A Levels I developed my dislike of ammonia. Before the practical the bottle of conc. ammonia had been sitting on the window sill in direct sunlight. When I went to open it I could feel that it was warm so I gently unscrewed the lid. Sure enough it started hissing so I left it to depressurise. After a few minutes I went back and it had stopped hissing so I span the top to unscrew it in one go. The resultant fountain, I'm told, went up about two feet. I was going through the door before anything hit the ground. It seems that somebody else had heard this hissing bottle and tightened the cap again to stop everything escaping. -- -- BEGIN NVGP SIGNATURE Version 0.000001 Frank J Hollis, Mass Spectroscopy, SmithKline Beecham, Welwyn, UK Frank_Hollis-1@sbphrd.com or fjh4@tutor.open.ac.uk These opinions have not been passed by seven committes, eleven sub-committees, six STP working parties and a continuous improvement team. So there's no way they could be the opinions of my employer.