To ensure the stability and efficacy of BTA•Na, the following storage specifications must be strictly adhered to. The core principle is preventing moisture absorption, as BTA•Na is highly hygroscopic.
I. Primary Storage Conditions
| Factor | Requirement |
|---|---|
| 1. Container | Must be airtight. Use original packaging (typically plastic-lined steel or HDPE drums). After opening, reseal immediately and tightly. If original packaging is compromised, transfer contents to a dry, sealable plastic container. |
| 2. Temperature | Store below 25°C (77°F), ideally. Do not exceed 30°C (86°F). High temperatures accelerate degradation and caking. |
| 3. Humidity | Keep in a dry environment. Relative humidity should be as low as possible (<60%). Never store in open or damp areas. |
| 4. Light | Store in the dark. Keep away from direct sunlight and strong fluorescent light. |
| 5. Ventilation | The storage room/area should be well-ventilated, but the containers themselves must remain sealed. |
| 6. Stacking | Place containers on pallets, away from floors and walls to prevent moisture absorption from surfaces. |
| 7. Segregation | Separate from strong oxidizers and strong acids to prevent chemical reactions. |
II. Handling & Usage Protocol
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Inventory Principle: Follow “First-In, First-Out” (FIFO) to minimize storage time per container.
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Handling During Use:
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Plan withdrawals to minimize the time containers are open.
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Use dry, clean, dedicated tools. Never introduce moisture or contaminants into the container.
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Reseal the container immediately after each use. Check the integrity of seals (e.g., liner bags, drum lids).
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For Long-Term Storage of Opened Containers: If a large drum is opened and will be stored for an extended period, consider transferring the remaining material into several smaller, fully sealable containers. Use one at a time to avoid repeatedly opening the main container.
III. Signs of Deterioration & Action
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Normal State: White to pale yellow crystalline granules or powder, free-flowing.
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Signs of Deterioration:
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Slight Caking: Caused by minor moisture absorption. Crush and use promptly. Review storage conditions.
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Severe Caking or Deliquescence: Formation of hard lumps or a wet, pasty mass indicates significant moisture uptake. Active ingredient may have partially decomposed or become uneven.
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Significant Darkening in Color: Suggests possible oxidation or degradation.
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Recommended Action: Do not use severely deteriorated product in critical water treatment systems, as its corrosion inhibition efficacy is compromised. Contact the supplier for proper disposal guidance.
IV. Safety Precautions
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BTA•Na is not flammable or explosive, but it is a chemical. Wear gloves and safety goggles when handling.
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For spills, collect material with dry tools and place in a dedicated chemical waste container. Avoid creating dust.
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The storage area should be equipped with appropriate fire-fighting equipment and spill containment materials.
Summary Key Points
The key to storing BTA•Na can be summarized as: “An airtight seal is critical, a dry environment is fundamental, and a cool temperature is essential.”
Adhering strictly to these methods ensures the product maintains its optimal performance throughout its shelf life (typically 2 years from manufacture under unopened, ideal conditions) and effectively protects copper and copper alloy equipment in your system. For facilities with frequent usage, purchasing smaller package sizes is recommended to minimize the risk of moisture absorption from repeated opening.