For corrosive goods, pay attention to whether the materials of goods and packaging containers will change chemically. The packaging of dangerous goods is different from that of ordinary goods. There are special methods for the packaging of dangerous goods. Metal packaging containers shall be coated on the container wall to prevent the corrosion of corrosive goods to the container. For example, the inner wall of the iron bucket for packaging synthetic fatty acids should be coated with an acid resistant protective layer to prevent the iron bucket from being corroded by the commodity and the commodity from deteriorating. For another example, hydrofluoric acid is an inorganic acid corrosive substance, which is highly toxic and can corrode glass. Instead of using glass bottles as packaging containers, it should be put into metal barrels or plastic barrels, and then into wooden cases. Formic acid is volatile and its gas is corrosive. It should be put into a good acid resistant jar, glass bottle or plastic barrel, sealed tightly, and then put into a solid wooden box or metal barrel.
For the packaging of yellow phosphorus and other commodities prone to spontaneous combustion, it is advisable to put them into an iron bucket with a wall thickness of not less than 1mm. The inner wall of the bucket must be coated with an acid resistant protective layer. The bucket is filled with water, and the water surface is immersed in the commodities. The bucket mouth is tightly closed, and the net weight of the barrel is not more than 50kg. Another example is that articles such as calcium carbide that cause combustion through water will decompose and generate flammable acetylene gas when encountering water. They shall be packed in strong iron drums filled with nitrogen. If the barrel is not filled with nitrogen, the vent piston shall be installed. For inflammable and explosive commodities, such as those with strong oxidizability, which will explode in the presence of trace impurities or when heated. The effective method of anti explosion packaging is to use plastic barrels for packaging, and then put the plastic barrels into iron barrels or wooden cases. The net weight of each piece is not more than 50kg, and there should be a safety valve for automatic deflation. When the barrel reaches a certain gas pressure, it can automatically deflate.
