Strontium compounds, particularly strontium carbonate, are sought for creating red-colored flames. Strontium nitrate, commonly found in road flares, can also be a source. The extraction process involves boiling road flares in water to separate strontium nitrate from insoluble materials, followed by adding baking soda to precipitate strontium carbonate. Strontium carbonate is readily available at pottery supply stores and can be used directly or reacted with acids to produce other strontium salts, enhancing its utility as a flame colorant. However, it's noted that strontium compounds may yield an orange-red flame rather than a pure red, with lithium carbonate providing a more vibrant red color. Pottery stores are likely to stock strontium compounds, making them accessible for those interested in pyrotechnics.
