Sodium Azide

AR 99% For Laboratory Use
CAS Number
26628-22-8
HSN Code
28500030
Molecular Formula
NaN3
Catalogue Number
AL4072
Purity
99%
Molecular Weight
65.01 g/mol

Complies with : IP | BP | USP | EP | ACS

ISO 9001 ISO 14001 GMP COA with every batch

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Key Properties

Appearance Colorless hexagonal crystals
Shelf Life Stable under recommended storage conditions
Packaging Available in: 100 gm glass bottle, 500 gm glass bottle
Storage Separated from food and feedstuffs, acids and metals. See Chemical Dangers. Provision to contain effluent from fire extinguishing. Store in an area without drain or sewer access.

Sodium azide is the sodium salt of hydrogen azide (hydrazoic acid). It has a role as a mitochondrial respiratory-chain inhibitor, a mutagen, an antibacterial agent and an explosive.

Also known as Sodium azide, Azide of sodium.

Catalogue No.
AL4072
CAS Number
26628-22-8
Molecular Formula
NaN3
Molecular Weight
65.01 g/mol
HSN Code
28500030
Grade
AR 99%
Product Form
Substance

Melting point: 275 °C (decomp); Density: 1.846 at 20 °C; Solubility: In water, 41.0 g/100 mL at 17 °C.

Appearance
Colorless hexagonal crystals
Shelf Life
Stable under recommended storage conditions
Packaging
Available in: 100 gm glass bottle, 500 gm glass bottle
Storage
Separated from food and feedstuffs, acids and metals. See Chemical Dangers. Provision to contain effluent from fire extinguishing. Store in an area without drain or sewer access.

1.1 — Product identifier

Chemical Name
Sodium Azide
Catalogue No.
AL4072
Product form
Substance
CAS Number
26628-22-8
EC Number
247-852-1
Grade
AR 99%
EC Index Number
011-004-00-7
Chemical Formula
NaN3
HSN Code
28500030
Synonyms
Sodium azide, Azide of sodium

1.2 — Relevant identified uses of the substance or mixture and uses advised against

Use of the substance/mixture
Analytical reagent, bacteriostatic preservative
Uses advised against
Not specified

1.3 — Details of the supplier of the safety data sheet

Company identification
Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.

1.4 — Emergency Contact Details

Phone / e-Mail
Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in

2.1 — Classification of the substance or mixture

Classification according to Regulation (EC) No 1272/2008
Acute Tox. 2; Aquatic Acute 1; Aquatic Chronic 1
Classification source
ECHA C&L Inventory via PubChem CID 33557 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements

2.2 — Label elements

Hazard pictograms
Acute Toxic, Environmental Hazard
Signal word
Danger
Hazard statements
H300: Fatal if swallowed; H400: Very toxic to aquatic life; H410: Very toxic to aquatic life with long lasting effects

2.3 — Other hazards

Other hazards
Highly toxic, potential explosive reactions with heavy metals

3.1 — Substance

Name
Sodium Azide
CAS No.
26628-22-8

4.1 — Description of first aid measures

First-aid measures after inhalation
If this chemical has been inhaled, remove the exposed person to fresh air at once. If breathing has stopped, perform artificial respiration. Keep the person warm and at rest.
First-aid measures after skin contact
If this chemical contacts the skin, immediately flush the contaminated skin with water. If this chemical penetrates the clothing, immediately remove the clothing and flush the skin with water. Get medical attention promptly.
First-aid measures after eye contact
If this chemical contacts the eyes, immediately wash (irrigate) the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately.
First-aid measures after ingestion
If this chemical has been swallowed, get medical attention immediately.

4.2 — Most important symptoms and effects, both acute and delayed

Symptoms relating to use
Symptoms of exposure may include headache, dizziness, nausea, vomiting, and respiratory distress.

4.3 — Indication of any immediate medical attention and special treatment needed

General information
Treat symptomatically. Show this safety data sheet to the treating physician.

5.1 — Extinguishing media

Suitable extinguishing media
Dry powder.
Unsuitable extinguishing media
Not specified

5.2 — Special hazards arising from the substance or mixture

Special procedures
- Sodium azide will initially sink in water. ; - Sodium azide is decomposed by sunlight and irradiation.

5.3 — Advice for firefighters

Protection during firefighting
Do not enter fire area without proper protective equipment, including respiratory protection.

6.1.1 — For non-emergency personnel

Emergency procedures
Evacuate area. Wear appropriate protective equipment. Contain and clean up spills using inert material.

6.3 — Methods and material for containment and cleaning up

Methods for cleaning up
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into covered plastic containers. If appropriate, moisten first to prevent dusting.

6.4 — Reference to other sections

Reference
Not specified

7.1 — Precautions for safe handling

Precautions for safe handling
Handle under inert gas. Use appropriate personal protective equipment (PPE) including gloves and goggles.
Hygiene measures
Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.

7.2 — Conditions for safe storage, including any incompatibilities

Storage conditions
Separated from food and feedstuffs, acids and metals. See Chemical Dangers. Provision to contain effluent from fire extinguishing. Store in an area without drain or sewer access.

8.2 — Exposure controls

Hand protection
Handle with gloves.
Eye protection
Face shield and safety glasses. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Skin and body protection
Wear suitable protective clothing
Respiratory protection
Use a NIOSH-approved respirator if exposure limits are exceeded.

9.1 — Information on basic physical and chemical properties

Physical state
Solid
Colour
White
Odour
Odorless (with traces of water fishy smelling because of HN3 formation)
Odour threshold
Not applicable
pH value
Not applicable
Relative evaporation rate (butylacetate=1)
Not applicable
Melting point
275 °C (decomp)
Freezing point
Not applicable
Boiling point
100 °C (decomposes)
Flash point
Not applicable
Auto-ignition temperature
Not applicable
Decomposition temperature
300 °C
Flammability (solid, gas)
Not flammable under normal conditions
Vapour pressure
1 Pa at 20 °C
Relative vapour density at 20°C
Not applicable
Density
1.846 at 20 °C
Solubility
In water, 41.0 g/100 mL at 17 °C
Log Pow
Not applicable
Viscosity, kinematic
Not applicable
Viscosity, dynamic
Not applicable
Explosive properties
Can be explosive when in contact with heavy metals
Oxidising properties
Not an oxidizer
Explosive limits
Not applicable

10.1 — Reactivity

Reactivity
Stable under normal conditions but can react violently with heavy metals and strong acids.

10.2 — Chemical stability

Chemical stability
Stable under recommended storage conditions.

10.3 — Possibility of hazardous reactions

Possibility of hazardous reactions
Decomposes on heating above 275 °C . This produces toxic fumes. This generates fire and explosion hazard. Reacts with copper, lead, silver, mercury and carbon disulfide.

10.4 — Conditions to avoid

Conditions to avoid
Avoid contact with incompatible materials and excessive heat.

10.5 — Incompatible materials

Incompatible materials
Heavy metals, strong acids, and oxidizing agents.

10.6 — Hazardous decomposition products

Hazardous decomposition products
Hazardous decomposition products formed under fire conditions - Sodium oxides.

11.1 — Information on toxicological effects

Acute toxicity
LD50 Rat oral 45 mg/kg; LD50 Mouse sc 23 mg/kg; LD50 Rat sc 45 mg/kg
Skin corrosion/irritation
Not classified (based on available data)
Serious eye damage/irritation
Not classified (based on available data)
Respiratory or skin sensitisation
Not classified (based on available data)
Germ cell mutagenicity
Not classified (based on available data)
Carcinogenicity
Not classified (based on available data)
Specific target organ toxicity (single exposure)
Not classified (based on available data)
Specific target organ toxicity (repeated exposure)
Not classified (based on available data)

12.1 — Toxicity

Toxicity information
Not specified

12.2 — Persistence - degradability

Persistence - degradability
Not specified

12.3 — Bioaccumulative potential

Bioaccumulative potential
Not specified

12.4 — Mobility in soil

Mobility in soil
Not specified

12.6 — Other adverse effects

Environmental precautions
Not specified

13.1 — Waste treatment methods

Additional Info
Dispose of contents/container in accordance with local, regional, national and international regulations.

14.1 — UN number

UN-No. (ADR)
UN 1687
UN-No. (IMDG)
UN 1687
UN-No. (IATA)
UN 1687
UN-No. (ADN)
UN 1687
UN-No. (RID)
UN 1687

14.2 — UN proper shipping name

Proper Shipping Name (ADR)
Sodium azide
Proper Shipping Name (IMDG)
Sodium azide
Proper Shipping Name (IATA)
Sodium azide
Proper Shipping Name (ADN)
Sodium azide
Proper Shipping Name (RID)
Sodium azide

14.3 — Transport hazard class(es)

Transport hazard class(es)
6.1

14.4 — Packing group

Packing group (ADR)
II
Packing group (IMDG)
II
Packing group (IATA)
II
Packing group (ADN)
II
Packing group (RID)
II

14.5 — Environmental hazards

Dangerous for the environment
Not specified
Marine pollutant
Not specified
Other information
No supplementary information available

15.1 — Safety, health and environmental regulations/legislation specific for the substance or mixture

15.1.1 EU-Regulations
Not specified

Sodium azide is widely used in laboratory research as an analytical-grade bacteriostatic preservative reagent. It is employed in the preparation of various chemical compounds and as a preservative in biological samples. Additionally, sodium azide is utilized in the synthesis of azides and as a propellant in automotive airbag systems. Its applications extend to the pharmaceutical industry, where it is used in the development of certain medications and as a reagent in organic synthesis.

ISO 9001 ISO 14001 GMP COA with every batch
Batch Number
AL-2026-AL1350A
Manufacturing Date
September-2026
Expiry Date
September-2031
Molecular Weight
65.01 g/mol
Test Standard Observed
Assay 99% min 99.5%
Moisture Content <1% 0.5%
Residue on Ignition <0.1% 0.05%
Related Substances None detected None detected
Solubility 0.1 g/100 mL in water at 20 °C 0.1 g/100 mL in water at 20 °C

The above product is expected to comply with AR 99% grade specification.

Technical Data Sheet

Grade Assay/Purity Melting/Boiling Point Moisture/LOD Residue on Ignition Related Substances Solubility
AR 99% 99% m.p. 275 °C (decomp) <1% <0.1% None detected In water, 41.0 g/100 mL at 17 °C
View full Technical Data Sheet

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