How Does Wax Evaporate?
Candles are a reassuring addition to any room in the house because of the atmosphere they create and the pleasant scents they release. Regrettably, their usefulness has a finite lifespan. When you light a candle, you could find yourself wondering why the wax eventually disappears.
Candle wax evaporates into thin air as a result of the heat from the flame, which melts the wax and allows it to be absorbed by the wick. After the wick has absorbed all of the wax, the molten wax still in the wick will eventually evaporate and burn, allowing the candle flame to keep going.
Candles are constructed in such a way that their wax supplies the wick with the energy it needs to continue burning at a low and steady rate, so producing light and frequently a scent. Read on to learn more about the process of evaporating water and how fast a candle burns down.
What are the reasons behind wax disappearing in a candle?
Wax may give the impression of being a substance that may last a long time, but this is not the case. Wax is an essential component of the candle, but it burns away because it melts and is carried away by the wick as the candle burns.
The temperature at which a substance transitions from its solid state into that of a liquid and then into that of gas is referred to as the substance’s melting point. The wax can attain this temperature because the flame of the candle flame glow raises the overall temperature of the candle. After then, a chemical transformation takes place, which results in the substance taking on the form of a liquid.
As the candle wick absorbs the liquid, it heats up and becomes drier, causing it to evaporate. As a result, it gets hotter, which makes it evaporate faster.
What is the melting point of candle wax?
Wax melts at different rates depending on temperature, but the range of temps where it does so reliably is between 80 and 200 degrees Fahrenheit. The time it takes for the wax to liquefy completely depends on several factors, such as the wax used, its thickness, and the ambient temperature.
- The type of wax used.
- Wax density
- Substances that are incorporated into the wax
Pure beeswax has a higher boiling point than any other variety of wax. Because of its high boiling point, pure beeswax requires a higher heat source to start to melt. Because of this, the temperature at which it must be heated before it will begin to melt is higher than those other varieties of wax require.
Read this article if you’re looking for an answer if do wax melts expire.
What is the rate of evaporation of candle wax?
The wax from candles can evaporate at various rates, depending not only on the melting point of the wax but also on the volume of the candle.
If you examine the candle’s label or bottom, you should see some information referred to as the “burn time.” This indicates how long it will take for your entire chemistry of candle aficionado to burn down, also known as evaporate. The type of wax that your candle is created from will typically have the most influence on its overall burn time.
What is the science behind candle wax evaporation?
You might have heard the term “evaporation,” which means evapotranspiration, but what does it mean? Simply put, evaporation is when a liquid substance, such as candle wax, changes into a gas, also known as a vapor, a substance released into the atmosphere.
There are three different states where matter can exist in. These include:
- Gas (vapor)
Any given substance can exist in these three states at any given moment. Applying heat to a substance transitions from one phase to the next in the phase diagram.
Water is a good illustration of this concept. Ice cubes are what it becomes when it freezes completely. On the other hand, if you apply heat, it will melt and turn into a liquid. If you heat it still further, it will begin to evaporate, which is another word for disappear.
In the case of wax, this phenomenon also takes place. Burning a candle lets one observe the transformation of all three states of matter in real time.
Evaporation rate of different candle wax types
Soft candle wick melt at a slower pace than hard ones. Because of this, they tend to evaporate at a slower pace than their harder counterparts. Hard larger candles last long because they don’t evaporate as quickly as soft ones.
The following is a list of popular types of candle wax, along with the average rate at which they burn:
- Parrafin wax is a wax that is on the softer side and often burns more quickly.
- Soy Wax is a type of wax with a medium level of hardness and an intermediate level of burn speed.
- Beeswax is a form of wax known for having a slow burn rate and being one of the hardest types of wax.
When shopping for favorite candles, it is a good idea to pay attention to the amount of time the candle is rated to burn for and the type of wax used to make the scented candle.
If you want to know whether the candle will evaporate faster, you need to know whether it has a long burn period or not.
Keep in mind that the cost of hard wax will typically be higher, whether you are purchasing solid candle wax or producing your own.
Harder waxy materials are usually of higher quality than softer ones and assure a longer burning period compared to their lower-cost counterparts.
Candles are not only pleasing to the eye, but they also have a fascinating history and are of scientific importance. Candles are fascinating in several ways, but one of the most intriguing aspects is how they generate their heat by using the wax that melts as it burns.
Evaporation is a fascinating phenomenon that, at the appropriate temperature, may affect virtually all physical objects. To melt and evaporate, thus dispersing their scent into the air, candles, to our great relief, do not require a very high temperature.
If you are passionate about candles, you should pay close attention to the time a candle burns and the sort of wax it is created from. This is typically an indication of how long it will take for your candle to burn out completely. If you have a basic understanding of the chemistry involved in candle combustion, it will be much simple to make an educated choice regarding the kind of candle to purchase.
Moreover, if you have found your old candle wax, and wondering what to do with it. You can read our article about what to do with leftover candle wax.
Smell is one of the human senses which can flow through the whole body. I am the Founder of NeoCandle.com where we talk all about scented candles. Known as Candace the Candle Girl, I know pretty much all there is to know about scented candles. I make and sell them on Etsy and Ebay – so be sure to ask if you have any burning questions 🙂 (pun intended 😉 )