-
Name
potassium azide
- EINECS 244-013-1
- CAS No. 20762-60-1
- Article Data43
- CAS DataBase
- Density 2.040
- Solubility g/100g H2O: 41.4 (0°C), 50.8 (20°C), 61.0 (40°C), 106 (100°C) [LAN05]
- Melting Point 350oC
- Formula KN3
- Boiling Point
- Molecular Weight 81.1184
- Flash Point
- Transport Information
- Appearance
- Safety A poison by ingestion. Hydrolysis yields KOH which is toxic and irritating. When heated it explodes weakly releasing nitrogen. Explosive reaction with sulfur dioxide at 120°C. Reacts with carbon disulfide to form an explosive product. Reacts violently with manganese dioxide when warmed. When heated to decomposition it emits very toxic fumes of NOx and K2O. See also AZIDES.
- Risk Codes 25
-
Molecular Structure
- Hazard Symbols T
- Synonyms Potassiumazide (6CI,8CI); PPG 101
- PSA 49.75000
- LogP 0.21376
Potassium Azide Chemical Properties
Molecular Structure:
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Molecular Formula: KN3
Molecular Weight: 81.1184
IUPAC Name: Potassium Azide
Synonyms of Potassium Azide (CAS NO.20762-60-1): AI3-52879 ; Caswell No. 682B ; EINECS 244-013-1 ; EPA Pesticide Chemical Code 107702 ; Potassium azide (K(N3))
CAS NO: 20762-60-1
Potassium Azide Uses
Potassium Azide (CAS NO.20762-60-1) has been found to act as a nitrification inhibitor in soil.
Potassium Azide Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| bird - wild | LD50 | oral | 17800ug/kg (17.8mg/kg) | Archives of Environmental Contamination and Toxicology. Vol. 12, Pg. 355, 1983. | |
| rat | LD50 | oral | 27mg/kg (27mg/kg) | National Technical Information Service. Vol. PB85-143766, |
Potassium Azide Safety Profile
A poison by ingestion. Hydrolysis yields KOH which is toxic and irritating. When heated it explodes weakly releasing nitrogen. Explosive reaction with sulfur dioxide at 120°C. Reacts with carbon disulfide to form an explosive product. Reacts violently with manganese dioxide when warmed. When heated to decomposition it emits very toxic fumes of NOx and K2O. See also AZIDES.
RIDADR of Potassium Azide (CAS NO.20762-60-1): 2811
HazardClass: 6.1(a)
PackingGroup: II
Potassium Azide Specification
Potassium Azide (CAS NO.20762-60-1) is a colorless crystals. It is a salt of hydrazoic acid, and crystallizes in a tetragonal structure. Upon heating or irradiation with ultraviolet light, it decomposes into potassium metal and nitrogen gas. Unlike heavy-metal azides, it is not sensitive to shock, but may explode if heated rapidly.
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