What citrus acid ester can be used in a color flame candle

One citrus acid ester that can be used in color flame candles is **citrus terpenes**, such as **limonene**. Limonene is derived from citrus fruits like oranges and lemons and is known for its pleasant aroma. When combined with certain metal salts, it can produce colored flames. For color effects, specific metal salts are typically added to candles, such as: - **Strontium salts** for red flames - **Copper compounds** for blue-green flames - **Sodium salts** (like sodium carbonate) for yellow flames - **Boric acid** for green flames When creating color flame candles, it's important to ensure that the materials used are safe for combustion and do not release harmful fumes. Always conduct thorough testing and consider safety when working with chemicals for candle making.