Additional info added 30 October 2003:
- An oxygen candel is usually potasiumchlorate being heated (>300 C):
- KClO3 + heat -> KCl + 3/2 O2
- This system was used in submarines for topping of oxygen levels in an
emergency. Another way of doing this without the heating is to use
managanesedioxid
- (Mn02) as a catalyst so that the chlorate reaction can be used without
the dangers of the high temp.
- The system used in many portable units such as the Russin IP4 is a
system where CO2 is rapidly produced upon activation by breaking a
container of sulfuric acid so that it is mixed with bakingpowder making
CO2
- (H2S04 + K2C03 -> K2S04 + H2O + C02). This high dose of CO2 then
reacts with the 'O3'-scrubber and gets the scrubber going and O2
flowing...
-
- As far as I know the russians also use lithiumperchlorate (LiClO4) to
produce O2 in their spaceprogram. This probably reacts in this way: LiCLO4
- -> LiCl + 2O2
(thanks to Mr. Anders Puranen, Sweden) |