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1.06688

Sigma-Aldrich

Sodium azide

extra pure, Technipur®

Synonym(s):

Sodium azide, Hydrazoic azid sodium salt

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About This Item

Empirical Formula (Hill Notation):
N3Na
CAS Number:
26628-22-8
Molecular Weight:
65.01
MDL number:
MFCD00003536
UNSPSC Code:
12352302
EC Index Number:
247-852-1
NACRES:
NA.21

vapor pressure

0.01 hPa ( 20 °C)

Quality Level

200

potency

27 mg/kg LD50, oral (Rat)

bp

300 °C/1013 hPa (rigorous decomposition)

mp

275 °C (decomposition)

solubility

420 g/L

density

1.85 g/cm3 at 20 °C

storage temp.

15-25°C

InChI

1S/N3.Na/c1-3-2;/q-1;+1

InChI key

PXIPVTKHYLBLMZ-UHFFFAOYSA-N

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General description

Sodium azide (NaN3) is an inorganic azide and a biocide known to inhibit bacterial and fungal growth in soil and water. It is widely used as an active ingredient in automobile airbag inflators. It is also used in pest control, detonators, explosives, and as a preservative in biological solutions.

Application

Sodium azide can be used as:
  • A component of a preservative named azidiol (a mixture of chloramphenicol and NaN3), which is used in preserving raw milk in the dairy industry.
  • A biocide to prevent deterioration of cane juice in sugar industries.

Legal Information

Technipur is a registered trademark of Merck KGaA, Darmstadt, Germany

Signal Word

Danger

Hazard Classifications

Acute Tox. 1 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2 Oral

Target Organs

Brain

Supplementary Hazards

EUH032

Storage Class Code

6.1A - Combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PDSCL

Poisonous substance

FSL

Self-reactive substances
Metal azides
Hazardous rank II
2nd self-reactive materials

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Deterioration of cane juice?sources and indicators
Eggleston G
Food Chemistry, 78(1), 95-103 (2002)
Electrochemical behaviour of Ti?6Al?4V alloy and Ti in azide and halide solutions
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Heakal F E-T, et al.
Corrosion Science, 53(9), 2728-2737 (2011)
Optimization of Preservation Methods Allows Deeper Insights into Changes of Raw Milk Microbiota
Ouamba AJK, et al.
Microorganisms, 8(3), 368-368 (2020)
Interactions of sodium azide with triazine herbicides: Effect on sorption to soils
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Chefetz B
Chemosphere, 65(2), 352-357 (2006)
Environmental Fate of Sodium Azide Derived from Automobile Airbags
Betterton EA
Critical reviews in environmental science and technology, 33(4), 423-458 (2003)

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