26628-22-8
Product Name:
Sodium azide
Formula:
N3Na
Synonyms:
Additive Screening Solution 45/Kit-No 78374;Hydrazoic acid sodium salt;NSC 3072;Sodium azide solution
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Sodium azide appears as a colorless crystalline solid. Density 1.85 g / cm3. Burns in air and may explode if large quantities are involved. Toxic by ingestion. Toxic oxides of nitrogen are produced in fires. |
|---|---|
| Color/Form | Colorless hexagonal crystals |
| Odor | Odorless (with traces of water fishy smelling because of HN3 formation) |
| Boiling Point | Decomposes in vacuum (EPA, 1998) |
| Melting Point | Decomposes at 527 °F to sodium and nitrogen (EPA, 1998) |
| Flash Point | Not flammable (EPA, 1998) |
| Solubility | 50 to 100 mg/mL at 72 °F (NTP, 1992) |
| Density | 1.846 at 68 °F (EPA, 1998) - Denser than water; will sink |
| Vapor Pressure | 1 Pa at 20 °C |
| Stability/Shelf Life | Stable under recommended storage conditions. |
| Decomposition | Hazardous decomposition products formed under fire conditions - Sodium oxides. |
| Corrosivity | Very corrosive to aluminum, moderate to copper and lead |
| Ionization Potential | 11.70 eV |
| Dissociation Constants | pKb = 9.3 |
| Other Experimental Properties | Decomposes at 275 °C to sodium and nitrogen. Decomposes in vacuum. |
| Chemical Classes | Other Uses -> Explosives |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Skull and Crossbones Acute Toxicity GHS06  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H373:Specific target organ toxicity, repeated exposure H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P262:Do not get in eyes, on skin, or on clothing. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P314:Get medical advice/attention if you feel unwell. |
COMPUTED DESCRIPTORS
| Molecular Weight | 65.010 g/mol |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 0 |
| Exact Mass | 64.99899129 g/mol |
| Monoisotopic Mass | 64.99899129 g/mol |
| Topological Polar Surface Area | 3 Ų |
| Heavy Atom Count | 4 |
| Formal Charge | 0 |
| Complexity | 15.5 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 2 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Sodium azide appears as a colorless crystalline solid. Density 1.85 g / cm3. Burns in air and may explode if large quantities are involved. Toxic by ingestion. Toxic oxides of nitrogen are produced in fires.