Nitrocellulose is a flammable substance and belongs to the category of dangerous goods. According to the interpretation of the Catalog of Hazardous Chemicals (2015 Edition), nitrocellulose is classified as a flammable solid of Class 4.1, and its Dangerous Goods Number is 41031.
The appearance and properties of nitrocellulose are white or slightly yellow, cottony or fibrous, odorless and tasteless. It is capable of spontaneous combustion when exposed to air, and will burn and explode when exposed to sparks, high temperature, oxidizers and most organic amines (such as p-phenylenediamine, etc.). When storing and transporting nitrocellulose, special attention needs to be paid to safety measures. It should be stored in a dry, ventilated, clean warehouse, away from heat sources, avoid direct sunlight, and shall not be stored with acidic substances, spontaneous combustion of goods and explosive substances, and prohibited close to open flames.
Nitrocellulose needs to follow a strict set of requirements and standards when exported by sea to ensure safety and compliance. The following are the main requirements for the export of nitrocellulose by sea:
1. Dangerous Goods Classification: Nitrocellulose belongs to Class 4.1 flammable solids, highly flammable and explosive, and its degree of danger depends on the degree of nitrification. Nitrocellulose containing more than 12.6% nitrogen is extremely dangerous, burning when exposed to fire, and can accelerate its decomposition and spontaneous combustion when the temperature exceeds 40℃.
2. Packaging requirements: nitrocellulose must use explosion-proof, moisture-proof special packaging, such as iron drum lined with plastic bags sealed. Packaging should ensure that in the process of transportation will not be damaged or leaking, and marked on the packaging of the relevant signs, such as product name, specifications, batch number, etc. 145.
3. Storage conditions: nitrocellulose should be stored in a cool, ventilated, dry environment, away from fire and heat sources. The temperature of the storage warehouse should not exceed 30 ℃, and should strictly control all kinds of open flames, away from places prone to ignition sources.
Wetting agent content: adding wetting agent in nitrocellulose can effectively prevent the decomposition of nitrocellulose and reduce its danger. Usually nitrocellulose with ethanol, isopropanol, n-butanol or water as a wetting agent, the content ≥ 25%.
4. Documents and declarations: the export of nitrocellulose need to provide relevant transport documents, including MSDS (Material Safety Data Sheet), dangerous package certificate, customs declaration information. Dangerous package certificate includes performance sheet and use certificate, which need to be applied to local commodity inspection bureau together with IMI identification and performance sheet.
5. Operation precautions: The operator must be specially trained, wear self-absorbing filtering dust mask, anti-static work clothes and shoes with iron nails when operating. Keep away from fire and heat source, smoking is strictly prohibited in the workplace. Use explosion-proof ventilation system and equipment to avoid generating dust.
6. Transportation requirements: nitrocellulose in the transport process should be prevented from sun and rain, and in accordance with the rules of the transportation department for the transportation of dangerous goods. Transportation vehicles should be equipped with the appropriate variety and number of fire-fighting equipment and leakage emergency response equipment.
7. Customs supervision: the export of nitrocellulose need to pass the customs supervision and inspection to ensure that all steps comply with the regulations. The relevant announcements and standards issued by the General Administration of Customs provide detailed guidance.
