Oxygen emergencies

Chlorate candles ate quite stable. While normally hermetically sealed, these candles have been stored uncontained for as long as 20 years, and then operated successfully with no loss of oxygen output. Thus, they are well suited as emergency oxygen-generation systems (3). Chlorate candles also produce oxygen under pressure and, therefore, can be stored in or operated from pressurized cylinders. 

Shafirovich, E., Zhou, C., Mukasyan, A., Varma, A., Kshirsagar, G., Zhang, Y. Cannon, J. 2003. Combustion fluctuations in low-exothermic condensed systems for emergency oxygen generation. Combustion and flame, 135, 557-561. 

In most commercial aircraft the total pressure inside is above that outside the aircraft and there is an emergency oxygen system in the event that a plane loses cabin pressure. 

The volume of gas produced by a chemical reaction can be measured using an apparatus like the one shown in Figure 11.14. Dalton s law of partial pressures is useful in the analysis of these kinds of experimental results. For example, the decomposition of potassium chlorate (KCIO3), the reaction used to generate emergency oxygen supplies on airplanes, produces potassium chloride and oxygen ... 

If the victim has difficulty in breathing, administer emergency oxygen. 

Outside Sources for Health Training (i.e.. Emergency Oxygen, Battery, Respirators) Injury Investigation... 

A similar reaction is used as a source of emergency oxygen in aircraft and submarines. 

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