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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

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)
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)
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)

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