Decomposition of Sodium Azide (Airbag Reaction)

2NaN3 → 2Na + 3N2

개요

Sodium azide rapidly decomposes when ignited to produce sodium metal and nitrogen gas. This extremely fast reaction (completing in about 40 milliseconds) is the primary gas-generating reaction in automobile airbags. The large volume of nitrogen gas produced instantly inflates the airbag.

참여 물질

역할 물질 계수 상태
반응물 Sodium Azide NaN₃ 2 (s)
생성물 Sodium Na 2 (s)
생성물 Nitrogen N 3 (g)

일상 속 예시

When you see an airbag deploy in a car crash, the bag is inflated by nitrogen gas from the rapid decomposition of sodium azide.

산업적 중요성

아자이드화나트륨은 자동차 에어백 팽창기의 핵심 성분입니다. 연간 1억 개 이상의 에어백이 생산됩니다. 반응의 속도와 가스 부피는 탑승자 안전을 위해 정밀하게 설계되었습니다.

성질

유형
Decomposition
가역 반응
아니오
에너지
발열
ΔH
-42.6 kJ/mol

관련 반응

Decomposition of Ammonium Nitrate Decomposition of Calcium Hypochlorite Decomposition of Carbonic Acid Decomposition of Iron(II,III) Oxide (Direct Reduction) Decomposition of Nitrous Oxide (Laughing Gas) Decomposition of Barium Peroxide Decomposition of Sodium Bicarbonate Decomposition of Water (Electrolysis) Thermal Decomposition of Copper(II) Carbonate Cracking of Octane (Thermal Cracking)

Frequently Asked Questions

What is the equation for Decomposition of Sodium Azide (Airbag Reaction)?
The balanced equation is: 2NaN₃ → 2Na + 3N₂.
What type of reaction is Decomposition of Sodium Azide (Airbag Reaction)?
Decomposition of Sodium Azide (Airbag Reaction) is a decomposition reaction.
Is Decomposition of Sodium Azide (Airbag Reaction) exothermic or endothermic?
Decomposition of Sodium Azide (Airbag Reaction) is exothermic (releases energy). The enthalpy change (ΔH) is -42.6 kJ/mol.