The chemical formula of zinc borate is 2ZnO · 3B2O3 · 3.5H2O, with a molecular weight of 434.51 and a melting point of 980 ℃. It is a white or light yellow powder that is insoluble in water, but may decompose in acidic or alkaline environments. Due to its low water solubility and high thermal stability, zinc borate is sensitive to humidity and temperature during storage.
1. Temperature and humidity control
Zinc borate should be stored in a dry and well ventilated environment, avoiding direct sunlight. The storage temperature should be controlled below 25 ℃, and the relative humidity should not exceed 75%. High temperature and humidity may cause zinc borate to absorb moisture and clump, affecting its dispersibility and effectiveness.
2. Packaging requirements
Zinc borate is usually packaged in inner plastic outer woven film bags, with a net weight of 25kg per bag. The packaging should be well sealed to prevent contact with air, moisture absorption or contamination. For long-term storage, it is recommended to use packaging materials with stronger moisture resistance.
3. Storage environment
The storage location should be kept away from sources of fire and strong oxidants, and avoid contact with chemicals such as acids and bases. Temperature and humidity monitoring equipment should be equipped in the warehouse, and packaging integrity should be checked regularly.
1. Prevent moisture absorption and clumping
Zinc borate is prone to clumping after absorbing moisture, which affects its fluidity. Therefore, during storage, it is necessary to ensure a dry environment and use desiccants if necessary.
2. Avoid contact with incompatible substances
Zinc borate should not be mixed with strong acids, strong bases, or corrosive substances to avoid chemical reactions that may cause performance degradation or danger.
3. Regular inspection and maintenance
During storage, regular checks should be conducted to ensure that the packaging is intact and that the powder is not clumped or discolored. If any abnormalities are found, they should be promptly handled and recorded.
1. Agglomeration problem
If zinc borate agglomerates, its fluidity can be restored by sieving or slight grinding. When there is severe agglomeration, it is recommended to contact the supplier for handling.
2. Packaging damage
Damaged packaging may cause zinc borate to become damp or contaminated. The packaging should be replaced immediately and the storage environment checked for compliance with requirements.
3. Storage period
The storage period of zinc borate is usually 12-24 months, depending on the storage conditions. It is recommended to follow the shelf life information provided by the supplier and prioritize using products from earlier batches.
The storage of zinc borate is a crucial step in ensuring its stable performance. By controlling temperature and humidity, using appropriate packaging, and regular inspection and maintenance, its service life can be effectively extended and safety hazards can be avoided. In the future, with the advancement of storage technology, the storage management of zinc borate will become more scientific and intelligent, providing strong support for the development of related industries.
