Sodium Azide

Sodium Azide Specification

Moisture (%)
0.5

Shelf Life
3 Years

Grade
Reagent Grade

Other Names
Sodium Salt of Hydrazoic Acid

EINECS No
247-852-1

Mesh
200 Mesh

Purity
99.0%

Molecular Formula
NaN3

CAS No
26628-22-8

Appearance
White Crystalline Powder

Ash %
0.05

Type
Inorganic Salt

Density
1.85 Gram per cubic centimeter(g/cm3)

pH
Neutral in Solution

Solubility
Soluble in Water

Usage
Laboratory Reagent, Preservative, Explosives, Airbag Propellant

Stability
Stable under recommended storage conditions

Hazard
Highly Toxic, Reactive, May Explode

Dangerous Goods Classification
Class 6.1 (Toxic Substances)

Odor
Odorless

Storage Condition
Store in Cool, Dry Place, Tightly Sealed

Melting Point
275°C (decomposes)

Boiling Point
Decomposes before boiling

Packaging
25 kg Drum, Customizable

About Sodium Azide

Sodium Azide is an inorganic compound with the formula NaN3. This colorless salt is the gas-forming component in some car airbag systems. It is used for the preparation of other azide compounds. It is an ionic substance, is highly soluble in water, and is acutely poisonous.

Versatile Chemical Applications

Sodium Azide serves multiple functions, ranging from laboratory reagents and preservatives to critical components in airbags and explosives. Users across the chemical, automotive, and research industries value its highly reactive nature and efficacy at preserving samples or triggering rapid gas generation.

Safety and Handling Precautions

Given its classification as a toxic substance (Class 6.1) and potential to explode when mishandled, Sodium Azide requires stringent safety protocols. Proper storage-cool, dry, and sealed containers-ensures stability, while personal protective equipment (PPE) and careful process management help mitigate risk during use.

Quality and Customization

With a purity level of at least 99.0% and packaging in customizable 25 kg drums, this reagent-grade sodium azide meets rigorous standards expected by laboratories and industrial users. Its fine mesh (200 mesh) makes it versatile for specific procedures and consistent in performance over its 3-year shelf life.

FAQ's of Sodium Azide:

Q: How should Sodium Azide be safely stored?

A: Store Sodium Azide in a cool, dry place with the container tightly sealed. Proper ventilation and segregation from incompatible materials are necessary to prevent accidental decomposition or reactivity.

Q: What are the primary industrial and laboratory uses of Sodium Azide?

A: Sodium Azide is widely used as a laboratory reagent, as a preservative, an explosive component, and most notably as an airbag propellant due to its ability to rapidly generate nitrogen gas when triggered.

Q: When does Sodium Azide lose its stability or effectiveness?

A: While Sodium Azide is stable for up to 3 years under recommended storage conditions, exposure to heat, moisture, or incompatible chemicals can compromise its effectiveness and safety.

Q: Where does Sodium Azide find application in safety devices?

A: Sodium Azide is crucial in automotive airbag systems, where it reacts to produce a rapid burst of nitrogen gas, inflating the airbag during collisions.

Q: What is the process for safely handling Sodium Azide in the laboratory?

A: Always use appropriate personal protective equipment, such as gloves and eyewear, in a well-ventilated area. Avoid physical shock, friction, and proximity to heavy metals or acids that may cause hazardous reactions.

Q: How does using Sodium Azide benefit laboratory research?

A: Its high purity and reactivity make Sodium Azide a reliable reagent for chemical synthesis, biological assays, and sample preservation, supporting precise and reproducible research outcomes.

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