Refined naphthalene, also known as naphthalene (refined), is a white volatile crystal with mild aromatic smell. Crude naphthalene has the smell of coal tar. The flash point is 80 ℃, the melting point is 80.1 ℃, and the boiling point is 217.9 ℃. It is insoluble in water and soluble in anhydrous ethanol, ether and benzene. Its density is heavier than water and its properties are stable. It is mainly used to synthesize phthalic anhydride. In the past, sanitary balls were made of naphthalene, but due to the toxicity of naphthalene, naphthalene has been banned as a component.

精萘属于4.1类危险品即是易燃固体，应密封贮存在阴凉处。对于此类货物，公司通过以下方式进行管控：一是入场前认真检查货物包装，确保无泄漏才允许入场；二是严格控制火源，确保场区内消除一切火源；三是加强巡检，时刻关注货物状态，确保无泄漏现象；四是利用先进的红外测温系统对货物进行温度监控。

Refined naphthalene belongs to class 4.1 dangerous goods, that is, flammable solid, which should be sealed and stored in a cool place. For such goods, the company controls them in the following ways: first, carefully check the goods packaging before admission to ensure that there is no leakage before admission; Second, strictly control fire sources to ensure that all fire sources are eliminated in the site; Third, strengthen patrol inspection, pay attention to the status of goods at all times, and ensure no leakage; Fourth, the advanced infrared temperature measurement system is used to monitor the temperature of goods.

即使精萘在场地发生货物泄漏也不必惊慌，值班安全员在场地巡检时发现疑似泄漏情况会立即报给控制中心，之后穿戴轻型防化服抵近侦查，确认泄漏情况后，调度员会安排正面吊将该集装箱搬移至应急处理区，启动现场处置方案。

Even if the naphthalene does not have to panic at the site of the leakage of cargo, the duty guard will find the suspected leakage immediately after the site inspecting. The light duty protective clothing will be put in contact with the investigation to confirm the leakage. After that, the dispatcher will arrange the front crane to move the container to the emergency treatment area and start the on-site disposal plan.

一旦内部有异常高温，会启用应急喷枪进行持续降温，待消防队赶来后，与消防队配合灭火，根据精萘的理化性质，优选干粉或二氧化碳灭火。通过以上措施的实施，我公司可以确保该货物安全可控。

Once there is abnormal high temperature inside, the emergency spray gun will be used for continuous cooling. After the fire brigade arrives, it will cooperate with the fire brigade to extinguish the fire. According to the physical and chemical properties of refined naphthalene, dry powder or carbon dioxide is preferred to extinguish the fire. Through the implementation of the above measures, our company can ensure that the goods are safe and controllable.