The storage of chemical has many special requirements. Here are some important aspects:

Storage Environment and Equipment Requirements
- Protective Measures: The storage area must be equipped with corrosion-resistant tanks, firewalls, ventilation facilities, and other protective measures to prevent chemical leaks and fires.
- Environmental Conditions: The storage area should be kept dry and well-ventilated, avoiding adverse environmental conditions such as high temperatures and humidity that may affect the chemical.
- Equipment Maintenance: Regular inspection and maintenance of storage equipment are essential to ensure its integrity and prevent chemical leaks or overflow.

Storage Operation Requirements
- Categorized Storage: chemical should be stored according to their properties. For example, flammable and explosive chemical, corrosive chemical, and toxic chemical should be stored separately to avoid dangerous reactions.
- Isolation: Different categories of chemical should be kept at a certain distance from each other or separated by partitions or walls. Incompatible materials must not be mixed.
- Label Management: All chemical and prepared reagents should be clearly labeled with information such as the name, concentration or purity, person in charge, and date.

Storage Quantity Requirements
- Limited Capacity: The quantity of chemical stored should not exceed the designed capacity of the storage area. There are specific storage limits for different categories of chemical.
- Avoid Overstocking: Overstocking or storing more varieties than allowed is prohibited to reduce storage risks.

Safety Management Requirements
- Designated Management: The storage area should be managed by designated personnel who are responsible for ensuring storage safety.
- Safety Facilities: The storage area should be equipped with appropriate safety facilities, such as explosion-proof electrical equipment, lightning protection devices, anti-static devices, and leak collection systems.
- Warning Signs: Prominent safety warning signs should be placed to inform about the dangers of the chemical and emergency measures.
- Emergency Preparedness: An emergency response plan for chemical leaks, fires, and other accidents should be developed. Regular drills and training should be conducted to ensure that appropriate measures can be taken promptly in the event of an accident.

Special Requirements for Certain chemical
- Explosives: Should be stored in a dedicated warehouse and must not be mixed with other hazardous chemical.
- Highly Toxic Substances: Implement the "five doubles" management (double acceptance, double custody, double dispatch, double locks, and double records). The storage location and quantity should be registered with relevant departments.
- Flammable Liquids: Should be stored in a well-ventilated, dry place, away from heat sources and direct sunlight. They should be stored on concrete or other impermeable surfaces.
- Corrosive Liquids: Such as strong acids like sulfuric acid, hydrochloric acid, and nitric acid, and strong bases like sodium hydroxide and potassium hydroxide solutions, should be stored with anti-corrosion measures to prevent damage to storage equipment.
- Compressed Gases: Bottled compressed gases require devices with ventilation, detection, and leak prevention functions.

In summary, the storage of chemical must strictly comply with relevant regulations and standards. Scientific and reasonable measures should be taken to ensure storage safety and protect personnel and the environment.