Hydrazoic acid
Hydrazoic acid
- CAS:
- 7782-79-8
- MF:
- HN3
- MW:
- 43.02804
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Properties
- Melting point:
- -80°
- Boiling point:
- bp 37°
- Density
- 1.092
- solubility
- soluble in H2O
- pka
- 4.72(at 25℃)
- form
- colorless liquid
- color
- colorless liquid; explodes, explosive
- PH
- pKa1= 4.43(25℃)
- Water Solubility
- very soluble H2O [HAW93]
- Exposure limits
- Ceiling 0.1 ppm vapor (ACGIH).
- Stability:
- Unstable. Violently explosive in the concentrated or pure states. Readily forms explosive compounds with heavy metals. This is a dangerous and hard to handle substance which must not be prepared or handled by non-experts.
Safety Information
- RIDADR
- 0473
- HazardClass
- 1.1A
- Toxicity
- LD50 in mice (mg/kg): 21.5 i.p. (Graham)
Use
Hydrazoic acid may be destroyed by convertingit to sodium azide. The latter isdecomposed with nitrous acid in a hood(National Research Council 1995). The followingmethod is used. It is diluted in waterto a strength below 5%; or its solution inorganic solvents that is immiscible in wateris shaken vigorously with water in a separatoryfunnel. The aqueous solution containinghydrazoic acid is neutralized with sodiumhydroxide and separated from any organiclayer. Sodium azide, so formed, is destroyedby reacting the aqueous solution with anexcess of sodium nitrite followed by 20%sulfuric acid until the solution is acidic. Thereaction is carried out in a three-necked flaskequipped with a stirrer, a dropping funnel,and a gas outlet line to vent out nitric oxide.The reaction mixture is flushed down thedrain.
0 India supplier list of "Hydrazoic acid"
![](/images/pro-3.jpg)
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5MG$496.33
- Product Name:HYDRAZOIC ACID
- Products Intro:Brand:Acccorporation | OriginalID:CHM0989989 | Purity:95.00%
- Company Type: Trader
- Country/Region: UNITED STATES
![](/images/pro-3.jpg)
- Product Name:hydrogenazide
- Products Intro:Purity: 99% HPLC | Package: 25KG;200KG;5KG;1KG;1T | CustNote: 7782-79-8
- Company Type: Trader
- Country/Region: CHINA