Is the flash point of diesel 55 or 60?
2 Answers
Diesel's flash point refers to its combustion limit, which is the temperature at which it begins to ignite when heated under specified conditions and exposed to a flame. Here is relevant information: 1. Diesel: The most important use of diesel is for diesel engines in vehicles and ships. Compared to gasoline, diesel has a higher energy density and lower fuel consumption rate. Due to its low energy consumption, some small cars and even high-performance vehicles have switched to diesel. 2. Flash point level: The flash point of diesel mainly relates to its volatility. The lighter the fraction, the easier it is to evaporate, and the lower the flash point. The lower the flash point of diesel, the more easily it can be ignited by a flame, increasing the risk of fire.
I remember driving diesel vehicles for over 20 years. The flash point of diesel actually fluctuates between 55°C and 60°C—it's not fixed at exactly 55 or 60. It really depends on the diesel type and season. In summer, the flash point might rise above 60°C, while in winter it could drop to around 55°C. A lower flash point makes it more prone to ignition, especially during refueling when higher temperatures pose risks—that's why I always remind people not to smoke or use phones near diesel. Different countries also have varying standards: domestically produced diesel typically requires a flash point no lower than 55°C, while imported diesel might be slightly higher. For peace of mind, always choose reputable gas stations and check the flash point label—safety comes first.
