As an important facility for storing various chemical reagents, the scientific and standardized management of chemical reagent cabinets is crucial. It not only relates to the smooth progress of experimental work, but also to personnel safety and environmental protection. The following elaborates on the management methods of chemical reagent cabinets from multiple aspects.

1、 Classified storage

1. Classified by chemical properties

According to the chemical characteristics of reagents, they are classified into inorganic substances, organic substances, acidic substances, alkaline substances, oxidants, reducing agents, flammable and explosive materials, toxic substances, and other categories. For example, storing strong acid reagents such as sulfuric acid and hydrochloric acid in a centralized manner; Place strong bases such as sodium hydroxide and potassium hydroxide separately; Reactive metals such as sodium and potassium, as well as flammable organic solvents such as ethanol and acetone, are classified separately and must not be mixed with each other to prevent dangerous chemical reactions.

2. Classified by purpose

For commonly used reagents in scientific research experiments, they can be subdivided according to the experimental needs of different disciplines, such as buffer solutions and staining agents used in biological experiments; Standard solutions and indicators for chemical analysis experiments; The monomers and catalysts used in material synthesis experiments are convenient for experimenters to quickly locate and improve experimental efficiency.

2、 Identification management

1. Complete label information

Each reagent bottle should be clearly and securely labeled with key information such as reagent name, molecular formula, purity, concentration, production date, expiration date, storage conditions, etc. For self prepared reagents, it is also necessary to indicate the preparer, preparation date, and main component content to ensure clear traceability.

2. Clear status identification

Using different colors or symbols to mark the special status of reagents, such as using red labels to identify toxic substances, yellow for flammable and explosive materials, and blue for corrosive reagents; For expired, deteriorated, or unprocessed reagents, prominent labels such as "expired" and "prohibited" should be posted to prevent misuse.

3、 Storage condition control

1. Temperature and humidity regulation

Set the appropriate storage temperature and humidity based on the characteristics of the reagents. Generally, the reagents can be stored at room temperature in the reagent cabinet. However, for reagents that are volatile and have poor thermal stability, such as ammonia water, hydrogen peroxide, etc., they need to be placed in a cool place or equipped with low-temperature refrigeration devices; Some reagents that are easily decomposed when exposed to moisture, such as metallic sodium, are prone to oxidation when exposed to air. Therefore, strict humidity control is necessary, and desiccants or dehumidification equipment can be used.

2. Ventilation and lighting protection

Maintain good ventilation inside the reagent cabinet, install ventilation holes or small fans to prevent the accumulation of volatile gases from causing explosion or poisoning risks. At the same time, avoid direct sunlight. For reagents that are easily decomposed by light, such as silver nitrate and nitrite, use brown bottles and place them in a dark location.

4、 Personnel operation standards

1. Registration for Collection and Return

Establish a strict system for the collection and return of reagents. When laboratory personnel collect reagents, they need to fill out a collection form, indicating the name, specifications, quantity, purpose, collection date, and expected return date of the reagents; After use, return it promptly, and the management personnel will verify the actual usage with the remaining amount to ensure that the account matches the goods.

2. Supervision of the usage process

In the laboratory, laboratory personnel are required to strictly follow the operating procedures when using reagents and wear protective equipment such as gloves, goggles, etc. For high-risk operations, such as those involving the generation of toxic gases, high-pressure reactions, etc., they must be carried out in fume hoods or specific safe areas, and accompanied by dedicated personnel for supervision.

5、 Daily inspection and maintenance

1. Regular inventory check

Conduct a comprehensive reagent inventory at least once a month, verify inventory quantities and account records, check the quality of reagents, and promptly address any damages, leaks, expiration, or other issues found. At the same time, based on the experimental consumption situation, replenish inventory reasonably to ensure that commonly used reagents are not out of stock.

2. Maintenance of equipment and facilities

Regularly check whether the lock, hinge, partition and other components of the reagent cabinet are intact, ensure that the cabinet door is tightly closed, and prevent unrelated personnel from opening it arbitrarily; Clean the inside and outside of the cabinet, wipe away stains and dust, and keep the environment clean; Check whether the ventilation, cooling and other equipment are operating normally, and promptly detect and repair faults.

6、 Emergency Response Plan

1. Equip emergency supplies

Necessary emergency rescue supplies, such as fire extinguishers, fire blankets, gas masks, first aid kits, etc., should be provided in or near the reagent cabinet to quickly take measures in case of emergencies such as fires, leaks, and personnel poisoning, in order to reduce the risk of accidents.

2. Emergency response process training

Organize experimental personnel to learn emergency plans and become familiar with the handling methods for various unexpected events. In case of reagent leakage, immediately initiate emergency procedures, evacuate personnel, and use absorbent materials to clean up the leaked material; When a fire occurs, choose the correct fire extinguisher to extinguish it and promptly call the police for help.

7、 Application of Information Management Methods

1. Inventory management system

Utilize professional inventory management software to input detailed information of reagents and achieve digital management. Through the system, real-time query of reagent inventory, location, inbound and outbound records, etc., setting inventory warning values, and automatically reminding management personnel to replenish when the quantity of a certain reagent is lower than.

2. Security monitoring linkage

Combined with the laboratory monitoring system, real-time monitoring of the reagent cabinet area is carried out to prevent theft, illegal operations, and other behaviors. Once an abnormal situation is detected, the monitoring system will immediately sound an alarm and connect to the management personnel's mobile phones to ensure timely resolution of the issue.