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| CAS No.: | 7782-79-8 |
|---|---|
| Name: | Hydrazoic acid |
| Molecular Structure: | |
|
|
|
| Formula: | HN3 |
| Molecular Weight: | 43.028 |
| Synonyms: | Azidicacid; Azoimide; Diazoimide; Hydrogen azide; Hydronitric acid; Triazoic acid |
| EINECS: | 231-965-8 |
| Density: | 1.09(25/4oC) |
| Melting Point: | -80oC |
| Boiling Point: | 37oC |
| Solubility: |
Stability
|
| Hazard Symbols: | Dangerous explosion risk when shocked or heated. Strong irritant to eyes and mucous membranes. TLV: CL 0.1 ppm (vapor) |
| Safety: | Poison by intraperitoneal route. Mildly toxic by inhalation. A severe irritant to skin, eyes, and mucous membranes. Continued inhalation causes central nervous system problems in humans (changes in EEG, somnolence, cough, headache, change in heart rate, fall in blood pressure, collapse, chills, and fever). High concentrations can cause fatal convulsions. Chronic exposure has been reported to cause injury to kidneys and spleen, hypotension, palpitation, ataxia, weakness. A dangerously sensitive explosive hazard when shocked or exposed to heat. Reacts with heavy metals to form very unstable heavy metal azides. Reacts violently with Cd, Cu, Ni, HNO3, F2. When heated to decomposition it emits toxic fumes of NOx. See also AZIDES. |
| PSA: | 61.24000 |
| LogP: | 0.42796 |
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Chemistry
IUPAC: Diazonioazanide
CAS:7782-79-8
The Molecular formula of Hydrazoic acid (7782-79-8):HN3
The Molecular Weight of Hydrazoic acid (7782-79-8):43.02804
EINECS:231-965-8
Melting Point: −80oC
Boiling Point:37oC
Appearance:colorless, highly volatile liquid
Density:1.09 g/cm3
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.
Mol File:7782-79-8.mol
Toxicity Data With Reference
| 1. | ihl-hmn TCLo:300 ppb:CNS,BRN,CVS | JIHTAB Journal of Industrial Hygiene and Toxicology. 30 (1948),98. | ||
| 2. | ihl-rat LCLo:1100 ppm/1H | PHRPA6 Public Health Reports. 58 (1943),607. | ||
| 3. | ipr-mus LD50:22 mg/kg | JIHTAB Journal of Industrial Hygiene and Toxicology. 30 (1948),98. |
Consensus Reports
Reported in EPA TSCA Inventory. EPA Genetic Toxicology Program.
Safety Profile
Poison by intraperitoneal route. Mildly toxic by inhalation. A severe irritant to skin, eyes, and mucous membranes. Continued inhalation causes central nervous system problems in humans (changes in EEG, somnolence, cough, headache, change in heart rate, fall in blood pressure, collapse, chills, and fever). High concentrations can cause fatal convulsions. Chronic exposure has been reported to cause injury to kidneys and spleen, hypotension, palpitation, ataxia, weakness. A dangerously sensitive explosive hazard when shocked or exposed to heat. Reacts with heavy metals to form very unstable heavy metal azides. Reacts violently with Cd, Cu, Ni, HNO3, F2. When heated to decomposition it emits toxic fumes of NOx. See also AZIDES.
Safty informations about Hydrazoic acid (7782-79-8):
RIDADR:0473
HazardClass:1.1A
Standards and Recommendations
ACGIH TLV: CL 0.1 ppm (vapor)
DFG MAK: 0.1 ppm (0.18 mg/m3)
Specification
Hydrazoic acid (7782-79-8) can be soluble in the strongest acids to produce explosive salts. It is also called for Hydrazoic acid ; Azoimide ; Hydrogen azide ; Hydrazoic acid (as vapour) ; 1H-triazirine ; Hydronitric acid ; Triazoic acid . This is a dangerous and hard to handle substance which must not be prepared or handled by non-experts. It has a pungent smell and its vapor can cause violent headaches. It is highly soluble in water and can be soluble in Alkali , Alcohol , Ether .