000			01397nab a2200181 4500
005			20260520003916.0
008			260224s2009 xxu
245	0	0	_aAmmonia solutions explosivity
260			_a _b _cmar. 2009
270			_a2009-03-31 ; 2009-03-31
300			_a9 p. ; 36-44
520			_aExplosion risks resulting from the industrial handling of aqueous ammonia solutions are often not taken into account in risk assessments, especially for dilute solutions, although accidental explosions implying ammonia vapors are reported in the literature. In fact, ammonia solutions do not show any flash point, but are able to form an explosive atmosphere. In this study, explosivity characteristics of several ammonia solutions, more or less diluted, were determined in a 20-L sphere device. It appears that the explosion range of ammonia solutions depends on the temperature and on the ammonia concentration. The explosion severity is smaller than for pure ammonia because of the presence of water and it tends to decrease slightly with dilution. However, the maximal explosion pressure is still above 3 bar with the 10% solution. Hence, such aqueous solutions, even diluted, handled in enclosed spaces can generate great disasters
581			_a1
773	0		_tProcess safety progress _g28
942			_cARTICULO
100	1		_aDupont, Laurent _940684
999			_c169394 _d169394