Safety data for sodium azide
Click here for data on sodium azide in student-friendly format, from the HSci project
The information on this web page is provided to help you to work safely, but it is intended to be an overview of hazards, not a replacement for a full Material Safety Data Sheet (MSDS). MSDS forms can be downloaded from the web sites of many chemical suppliers.
Toxicity data
Risk phrases
Safety phrases
This information was last updated on October 24, 2008. Although
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for it. General
Synonyms: azium, azide
Molecular formula: NaN3
CAS No: 26628-22-8
EC No: 247-852-1
Annex I Index No: 011-004-00-7
Physical data
Appearance: odourless colourless hexagonal crystals
or white powder
Melting point: 275 C
Boiling point:
Specific gravity:1.84
Vapour pressure:
Vapour density: 2.2
Flash point: none
Explosion limits:
Autoignition temperature:
Stability
Unstable. Avoid heat, sources of ignition, moisture,
shock, friction. Incompatible with strong oxidizing agents,
mineral acids, water, halogen acids and halogen compounds,
barium carbonate, bromine, carbon disulphide, mercury,
dimethyl sulphate, common metals, especially brass, copper,
lead, silver, strong acids.
Toxicology
Poison. Harmful by inhalation, ingestion or by
skin contact. Ingestion or inhalation may
be fatal. Material is readily absorbed through skin. Mutagen.
Swiss poison class 2.
(The meaning of any toxicological abbreviations which
appear in this section is given
here.)
ORL-MUS LD50 27 mg kg-1
ORL-WMN LDLO 14 mg kg-1
ORL-MAN LDLO 29 mg kg-1
SKN-RAT LD50 50 mg kg-1
(The meaning of any risk phrases which appear in this section is
given
here.)
R21 R26 R28 R32 R50 R53.
Environmental information
Very toxic in the environment.
Transport information
(The meaning of any UN hazard codes which appear in this section
is given
here.)
UN No 1687. Packing group II. Hazard class 6.1.
Personal protection
Safety glasses. Face mask if working with more than trivial quantities.
Gloves, efficient ventilation.
[Return to Physical &
Theoretical Chemistry Lab. Safety home page.]
(The meaning of any safety phrases which appear in this section
is given here.)
S1 S2 S28 S45 S60 S61.