Decomposition of Sodium Azide (Airbag Reaction)

2NaN₃ → 2Na + 3N₂

ภาพรวม

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.

ผู้เข้าร่วม

บทบาท	สาร	สัมประสิทธิ์	สถานะ
สารตั้งต้น	Sodium Azide NaN₃	2	(s)
ผลิตภัณฑ์	Sodium Na	2	(s)
ผลิตภัณฑ์	Nitrogen N	3	(g)

ตัวอย่างในชีวิตประจำวัน

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

ความสำคัญทางอุตสาหกรรม

Sodium azide is the key component of automotive airbag inflators. Over 100 million airbags are produced annually. The reaction's speed and gas volume are precisely engineered for occupant safety.

คุณสมบัติ

ประเภท: Decomposition
ย้อนกลับได้: ไม่
พลังงาน: คายความร้อน
ΔH: -42.6 kJ/mol

ปฏิกิริยาที่เกี่ยวข้อง

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.