Degreasing powder AR-815 must be stored under cool, dry, well-ventilated, and strictly sealed conditions, and must be protected from moisture absorption, high temperatures, and contact with acids and amphoteric metals.
Detailed explanation
Degreasing powder AR-815 is a strongly alkaline industrial cleaning powder (pH value of a 1% aqueous solution is 12.0-13.5), which easily absorbs moisture from the air and deliquesces into lumps. Therefore, it must be stored in a dedicated chemical warehouse where the floor should be laid with alkali-resistant, anti-leakage materials, with a containment dike set up, away from drainage, living areas, and heat sources.
Five key elements of storage conditions
- Environmental control: The warehouse must be cool, dry, and well-ventilated. A constant low-temperature environment needs to be maintained, strictly isolating water vapor, steam, and condensation. The product database indicates that this powder is "easily moisture-absorbent," so moisture prevention is the top priority for storage.
- Sealing management: This product is typically packed in 20kg woven bags. After each use, the packaging bag must be immediately and completely sealed. If the original packaging is found to be damaged, the powder should be immediately transferred to a compatible, alkali-resistant sealed container, and it is strictly forbidden to leave it open.
- Incompatible isolation: It is strictly prohibited to mix with strong acids, peroxides, metal powders, and reactive organic substances. Special attention must be paid to separate and store it in separate zones from amphoteric metals such as aluminum and zinc, as contact with alkaline powder may generate hydrogen gas, posing a risk of combustion and explosion.
- Security and labeling: Access to the storage area should be controlled, lock management is recommended, and GHS05 (corrosive) and GHS07 (exclamation mark) hazardous chemical warning signs should be posted prominently in the warehouse.
- Inventory turnover: Strictly adhere to the "first in, first out" principle to avoid aging and embrittlement of packaging due to indefinite stacking, thereby increasing the risk of leakage.
Precautions
Under normal sealed storage conditions, the chemical properties of the product are stable. If improper storage leads to severe moisture absorption and caking, localized intense exothermic reactions may occur during preparation. In case of leakage, use dry sand or inert absorbent materials for cleanup. It is strictly forbidden to directly flush the leaked powder with water, as high-concentration alkaline liquid may damage the ground and contaminate water bodies. Empty packaging bags must be disposed of as hazardous waste by qualified units and must not be used privately to hold other items.
