Gases used in Cloud Seeding - Science & Technology
Q. Which of the following gases are used in Cloud Seeding?
1. Phosphorus triiodide
2. Potassium iodide
3. Solid carbon dioxide
4. Sodium iodide
5. Silver iodide- Published on 12 Aug 15
c. 3 and 5
The most common chemicals used for cloud seeding include silver iodide, potassium iodide and dry ice (solid carbon dioxide). Liquid propane, which expands into a gas, has also been used. This can produce ice crystals at higher temperatures than silver iodide.