What is the correct stoicheometric ratio b/w NaN3 and KNO3 to ensure no sodium is unreacted? What would be the consequences of an excess of KNO3 to the operation of an airbag?

Question

Chemistry

Boomer

25 June, 06:20

What is the correct stoicheometric ratio b/w NaN3 and KNO3 to ensure no sodium is unreacted? What would be the consequences of an excess of KNO3 to the operation of an airbag?

+3

Answers (1)

Know the Answer?

Carly · Answer 1

2KNO3 + heat = = > 2KNO2 + O2

So if KNO3 is in excess and it's just popped out of the inflated bag and nothing else happens, then I don't think the KNO3 would have a damaging effect. However, as we all know, in accidents, many things can happen. IF the temperature goes up (for example, a fire starts (not all that unusual), then the KNO3 could produce oxygen and we certainly don't want any excess oxygen around with a fire.