The consequences of leaving perfume in the car exposed to the sun. Is it safe to leave perfume in the car?

Some people will put some car perfume here to purify the air inside the car, but the air inside the car is relatively high and there will be strong sunlight. Is it safe to put this perfume in the car?

Perfume produces a flammable gas after evaporation. The gas concentration is highest at the front of the car, and when the concentration and temperature reach the limit, it will cause an explosion. Even if the concentration evaporated into the car is not high enough, the perfume bottle still has the risk of explosion due to direct sunlight at the front of the car. The instructions for use of car perfume often indicate warnings about explosions in case of high temperature, collision, etc., but drivers often ignore such instructions. It is recommended that car owners do not use or use less perfume in summer.

Perfumes are mostly made from industrial alcohol and industrial essences. Alcohol is flammable and volatile, so perfumes are flammable. When the temperature in the car is too high, the gas pressure in the perfume bottle increases and it is easy to break the perfume bottle and cause an "explosion". Not only perfumes, but also lighters, carbonated drinks, air fresheners, etc. should not be placed in cars with too high temperatures.

Perfume may change its smell if it is stored for a long time. This is because the perfume components may evaporate and become concentrated, making the smell more pungent. The smell may also change due to oxidation. Therefore, you can use the perfume as you like, but don't leave it unused for too long. When storing, you can also seal the perfume and keep it in a place where it is not exposed to direct sunlight.

Putting perfume in the car will cause an explosion. Because perfume contains soluble mixtures such as alcohol, one of the physical properties of alcohol is volatility, and alcohol is also flammable. In summer, the temperature is relatively high, sometimes reaching more than 30 degrees Celsius. Some perfume bottles have a focusing effect, which exacerbates the evaporation of alcohol. After the alcohol evaporates, it turns into gas and increases in volume. However, since the volume of the perfume bottle does not change, the pressure of the gas in the bottle increases accordingly. This principle is similar to a pressure cooker in several ways. When the evaporation holes of the perfume are not enough to allow the air in the bottle to flow out smoothly, the perfume bottle placed in the car will explode.