Author: Site Editor Publish Time: 2025-04-22 Origin: Site
1. Chemical storage: All chemicals and reagent preparations should be clearly labeled to avoid confusion such as missing labels and incomplete label information. The place where chemicals are stored must be clean, ventilated, insulated, safe, and away from heat and fire sources. Chemicals should be sealed, classified, and stored reasonably. Do not mix incompatible chemicals that will react violently when interacting with each other. The laboratory shall not store a large amount of reagents. Only as much as needed should be collected. It is strictly forbidden to store a large amount of flammable, explosive and strong oxidizers. According to the types and characteristics of different chemicals, they should be stored in categories and corresponding storage equipment should be used; dangerous chemicals should implement the "five pairs" system of "two people collecting, two people transporting, two people double-locking storage, two people using, and two people recording", and relevant records should be kept.
2. Temperature control: The temperature in the laboratory should be kept within an appropriate range, and avoid too high or too low temperatures. Different chemicals have different temperature requirements, so it is necessary to determine the appropriate storage temperature based on the safety data sheet of the chemical.
3. Humidity control: Humidity has an important influence on the stability of certain chemicals. Some hygroscopic chemicals need to be stored in a dry environment to avoid contact with water to cause reactions or degradation.
4. Light control: Some chemicals are sensitive to light and are prone to decomposition, discoloration or production of harmful substances. Therefore, these chemicals should be stored in a dark place and avoid exposure to strong light.
5. Storage location: Chemicals should be stored at an appropriate height and should not be stored in a fume hood. The storage location of containers containing corrosive liquids should be as low as possible and padded with a collection tray to prevent spillage and safety accidents.
6. Chemical characteristics: Chemicals that are unstable or prone to peroxide formation during storage need to be specially marked. Unstable chemicals should be stored separately and the purchase date should be marked on the label. Drug reagents that may react chemically should be stored separately to prevent interactions from producing toxic fumes, fires, or even explosions. Volatile and toxic substances require special storage conditions. Highly toxic drugs may not be stored in the laboratory without permission. Large quantities of flammable solvents may not be stored in the laboratory. Take as much as you need. Unused bottles of reagents must be placed away from light and heat sources.
7. Explosion-proof items and oxidizers: Explosive items should be stored in a warehouse with a temperature below 30°C and a relative humidity of 75-80%. Generally, oxidizers should be kept below 30°C. For some oxidizers containing crystalline water, such as nitrates, which melt and lose their crystalline state after being heated, causing deliquesce, the warehouse temperature should not exceed 28°C and should be kept in an insulated warehouse. The relative humidity should be kept below 75%.
8. Compressed and liquefied gases: The warehouse temperature should not exceed 32°C and the relative humidity should be kept below 80% to prevent the cylinders from rusting.
9. Self-igniting items: The warehouse temperature should be around 28-30°C and the relative humidity should be kept below 80%. For yellow phosphorus storage warehouses, the minimum warehouse temperature in winter should not be lower than 3°C.
10. Moisture-proof items: The warehouse temperature should be around 30°C. The relative humidity should generally be below 75°C, and special attention should be paid to taking moisture-proof measures.
11. Flammable liquids: The temperature in the warehouse must be strictly controlled to prevent it from being too high, especially according to the boiling point and flash point of the liquid.
12. Flammable solids: Excessive humidity or humidity will affect the safe storage of flammable solids.
Please note that these are just basic laboratory chemical safety storage points, and the specific storage plan may vary depending on the specific chemicals and laboratory environment. In actual operation, it is recommended to follow local safety regulations and standard operating procedures, and ensure that all operations comply with relevant health and safety guidelines.
