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Sigma-Aldrich |
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| | potassium azide Basic information |
| Product Name: | potassium azide | | Synonyms: | potassium azide;Azidopotassium;Potassium azide >=99.9% trace metals basis;Potassium azide, ≥99.9%;KN3 | | CAS: | 20762-60-1 | | MF: | KN3 | | MW: | 81.1184 | | EINECS: | 244-013-1 | | Product Categories: | TOP | | Mol File: | 20762-60-1.mol |  |
| | potassium azide Chemical Properties |
| Melting point | 350 (vacuum) [CRC10] | | density | 2.040 | | form | tetragonal crystals | | color | tetragonal crystals, crystalline; explodes, explosive | | Water Solubility | g/100g H2O: 41.4 (0°C), 50.8 (20°C), 61.0 (40°C), 106 (100°C) [LAN05] | | InChI | InChI=1S/K.N3/c;1-3-2/q+1;-1 | | InChIKey | TZLVRPLSVNESQC-UHFFFAOYSA-N | | SMILES | N([K])=[N+]=[N-] | | EPA Substance Registry System | Potassium azide (20762-60-1) |
| Hazard Codes | T | | Risk Statements | 25 | | Safety Statements | 45 | | RIDADR | 2811 | | WGK Germany | 3 | | RTECS | TS7080000 | | TSCA | TSCA listed | | HazardClass | 6.1(a) | | PackingGroup | II | | Storage Class | 6.1A - Combustible acute toxic Cat. 1 and 2
very toxic hazardous materials | | Hazard Classifications | Acute Tox. 2 Oral |
| | potassium azide Usage And Synthesis |
| Chemical Properties |
colorless; body-center; tetr, a=0.6091 nm, c=0.7056 nm [CIC73] [CRC10]
Solubility (water) (0°C) 41.1 g, (17°C) 49.6 g, (100°C) 105.7 g/100 g H2O; (alcohol, 16°C) 0.137 g/100 g absolute alcohol; insoluble in ether.
| | Uses | Potassium azide can be used as a reagent to synthesize:
- 3-O-(3-Azidoopropyl)estrone from 3-O-(3-methanesulfonyloxypropoxy)estrone via nucleophilic azidation in the presence of imidazolium catalyst.
- Azido phenacyl derivatives from α-bromoacetophenone derivatives in the presence of tetrabutylammonium bromide as a catalyst.
- 1-Azido-4-fluorobenzene from potassium (4-fluorophenyl)trifluoroborate in the presence of cupric triflate as a catalyst.
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| | potassium azide Preparation Products And Raw materials |
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