S2421751
BioXtra , 26628-22-8
Synonym(s):
Additive Screening Solution 45/Kit-No 78374;Hydrazoic acid sodium salt;NSC 3072;Sodium azide solution
CAS NO.：26628-22-8
Empirical Formula: N3Na
Molecular Weight: 65.01
MDL number: MFCD00003536
EINECS: 247-852-1
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | 275 °C |
| Boiling point: | 300 °C |
| Density | 1.85 |
| vapor pressure | 0Pa at 20℃ |
| Flash point: | 300 °C |
| storage temp. | 2-8°C |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| form | Powder/Solid |
| pka | pK = 4.8, aq solns contains HN3 which escapes readily at 37° |
| color | White to off-white |
| Specific Gravity | 1.85 |
| Odor | Odorless solid |
| PH | ~10.0 (25°C, 1M in H2O) |
| biological source | synthetic (inorganic) |
| Water Solubility | 420 g/L (17 ºC) |
| Sensitive | Air & Moisture Sensitive |
| Merck | 14,8581 |
| Exposure limits | Ceiling 0.3 mg/m3 in air (ACGIH). |
| 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. |
| CAS DataBase Reference | 26628-22-8(CAS DataBase Reference) |
| EPA Substance Registry System | Sodium azide (26628-22-8) |
| Absorption | cut-off at 276nm in H2O at 1M |
Description and Uses
Sodium azide is used in making othermetal azides, therapeutically to control bloodpressure, as a propellant for automotivesafety bags, as a preservative for laboratoryreagents, as an analytical reagent, andin organic synthesis. It is also used as anantifading reagent for immunofluorescence(Boeck et al. 1985).
Safety
| Symbol(GHS) |    GHS06,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H300+H310+H330-H373-H410 |
| Precautionary statements | P262-P273-P280-P302+P352+P310-P304+P340+P310-P314 |
| Hazard Codes | Xn,T,N,T+ |
| Risk Statements | 28-32-50/53-52/53-22-27-21/22 |
| Safety Statements | 61-60-45-28A-28-36/37 |
| OEL | Ceiling: 0.3 mg/m3 (as NaN3) [skin] |
| RIDADR | UN 1687 6.1/PG 2 |
| WGK Germany | 2 |
| RTECS | VY8050000 |
| TSCA | Yes |
| HazardClass | 6.1 |
| PackingGroup | II |
| HS Code | 28500060 |
| Hazardous Substances Data | 26628-22-8(Hazardous Substances Data) |
| Toxicity | LD50 in rats (mg/kg): 45 orally (Frederick, Babish) |
| Limited Quantities | 100ml (liquid) or 0.5 Kg (solid) |
| Excepted Quantities | Max Inner Pack (1g or 1ml) and Max Outer Pack (500g or 500ml) |
