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August 18, 2022
Major safety risks of hazardous chemicals in summer
1.The increase in temperature increases the volume and pressure of dangerous chemicals
The expansion coefficient of flammable liquid is generally relatively large, stored in a closed container, the volume is easy to expand after heat, and the vapor pressure increases, so that the internal pressure of the container increases, easy to cause container failure, or even crack. The phenomenon of "drum" and the explosion of glass containers in high temperature season containing flammable liquid are caused by thermal expansion. If the container is open, the liquid expands beyond its capacity and spills, running, bubbling, dripping, or leaking.In the case of gases, the coefficient of expansion is even greater. Gas is usually contained in a cylinder. As the temperature increases, the pressure in the cylinder increases. For example, when the oxygen cylinder is 0℃, the pressure in the cylinder is 150kg/cm; When the temperature rises to 54.6℃, the pressure rises to 180 kg/cm2. If the pressure is too high, the cylinder risks exploding.
2.The rising temperature makes the liquid evaporate faster
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