Precautions for the transportation of hydrogen chloride: When transporting by railway, it should be installed in strict accordance with the dangerous goods distribution table in the "Regulations on the Transport of Dangerous Goods" of the Ministry of Railways. The safety helmet on the steel cylinder must be worn when transporting the fresh hydrogen chloride cylinder. Hydrogen chloride cylinders are generally placed flat, and the mouths of the cylinders should face the same direction without crossing; the height should not exceed the protective fence of the vehicle, and they should be secured with triangular wooden pads to prevent rolling. Mixed shipment and transportation with alkalis, active metal powders, edible chemicals, etc. are strictly prohibited. In summer, it should be transported in the morning and evening to prevent sun exposure. When transporting by road, it is necessary to drive along the prescribed route, and it is forbidden to stay in residential areas and densely populated areas. It is forbidden to drop hydrogen chloride when transporting hydrogen chloride by railway.