Automobile airbags, sodium azide

What is the minimum amount of sodium azide, NaN3, that can be added to an automobile airbag to give a volume of 20.0 L of N2(g) on inflation Make any reasonable assumptions required to obtain an answer, but state what these assumptions are. 

Most automobile airbags contain sodium azide (NaNj) as the propellant. When accelerometers detecta crash, the electronic controllerfiresthe charge of sodium azide. Sodium azide decomposes explosively, generating nitrogen gas that fills the airbag. 

Sodium azide (NaN3) is used in airbags in automobiles. Upon impact, an electrical discharge causes the sodium azide to rapidly decompose into sodium metal and nitrogen gas, as shown by the following equation ... 

Sodium azide is best known as the chemical found in automobile airbags. An electrical charge triggered by automobile impact causes sodium azide to explode and release nitrogen gas inside the airbag. 

CDC has received no reports of sodium azide exposure following automobile airbag deployment. 

Sodium azide is a highly toxic, white crystalline solid. It has come into widespread use in automobile airbags its explosive decomposition to nitrogen gas provides rapid inflation of the airbag. In addition, sodium azide is used in the production of metallic azide explosives and as a preservative in laboratories. It has no current medical uses, but because of its potent vasodilatory effects, it has been evaluated as an antihypertensive agent,... 

Sodium azide, NaN3, decomposes explosively to sodium metal and nitrogen gas and is used in automobile airbags. 

Although very toxic, sodium azide (NaNj) is used in some airbags in automobiles. As an igniter, 0.1-0.3 g boron mixed with potassium nitrate or another oxidizing agent is used. On collision, the system is activated within a few milliseconds, the azide is decomposed and nitrogen gas produced blows up the airbag. 

Betterton EA (2003) Environmental fate of sodium azide derived from automobile airbags. Crit Rev Environ Sci Technol 33 423-458... 

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