Color changing candles work through a process called oxidation. When an uncolored candle is exposed to UV light, it undergoes a chemical reaction that causes it to change color. This reaction is similar to what happens when certain metals, like copper, rust or oxidize when exposed to air and moisture.
The ultraviolet (UV) effects of light are the most common reason for the discoloration of candle color. UV light is present in sunlight as well as in artificial lighting sources such as fluorescent bulbs. When a candle is exposed to UV light, the molecules in the wax are excited and start to break down. This breakdown of the molecules leads to a change in the candle’s color.
Oxidation is another cause of color change in candles. Oxidation occurs when a substance reacts with oxygen in the air. In the case of candles, the wax molecules react with oxygen and undergo a chemical change, resulting in a different color. This process is similar to what happens when an apple turns brown after being cut and exposed to air.
The specific mechanism of color change in color changing candles varies depending on the brand and type of candle. Some color changing candles contain special pigments or dyes that are sensitive to UV light. When these pigments are exposed to UV light, they undergo a chemical reaction that causes them to change color. This reaction is reversible, meaning the candle can change back to its original color when the UV light source is removed.
Other color changing candles may contain certain additives or chemicals that react with oxygen in the air to produce a color change. These additives can be incorporated into the wax or applied as a coating on the surface of the candle. When the candle is lit, the heat causes the additives to react with oxygen, resulting in a change in color.
It’s important to note that not all candles are designed to change color. If you’re specifically looking for color changing candles, make sure to check the product description or packaging to see if they have this feature.
The color changing candles work through a combination of UV light exposure and oxidation. The specific mechanism of color change can vary depending on the brand and type of candle, but it generally involves a chemical reaction that alters the color of the candle. Whether it’s through the use of special pigments or additives, color changing candles offer a unique and visually interesting experience.
