Papermaking defoamer XS-02 (polyether ester defoamer) is a non-ionic polyether ester defoamer, appearing as a white to light yellow viscous liquid, with excellent safety characteristics such as low toxicity, non-irritating, and non-flammable. Despite this, standardized industrial operating procedures must be followed during actual use to avoid unnecessary safety risks or affecting product performance due to improper operation. This product is widely used in multiple processes such as papermaking pulping black liquor, paper machine white water circulation, coating, and surface sizing. Correct usage can maximize its efficient defoaming and foam-suppressing capabilities while ensuring production safety.
It is particularly important to note that although this product is classified as a non-hazardous chemical, direct contact with skin and eyes may still cause discomfort. Appropriate protective equipment should be worn during operation. Additionally, the dosage of the defoamer in the system should be determined through trials; ideal foam control can usually be achieved at very low dosages. Excessive addition not only increases costs but may also interfere with subsequent processes such as sizing and coating.
| Storage Requirement | Specific Instructions |
|---|---|
| Container Seal | Keep container tightly closed to prevent ingress of impurities and moisture |
| Storage Environment | Cool, dry, and away from light |
| Recommended Temperature | 5 ~ 35 °C |
| Away from Fire Sources | Keep away from heat sources, sparks, open flames, and strong oxidizers |
| Spill Prevention Measures | Storage area should have spill containment facilities, and flooring should be chemically resistant |
| Route of Exposure | First Aid Treatment Method |
|---|---|
| Inhalation | If discomfort occurs due to high airborne concentration, immediately move the person to fresh air and maintain an open airway. Seek medical attention if symptoms persist. |
| Skin Contact | Remove contaminated clothing and rinse skin with soap and plenty of water. If irritation or discomfort occurs, seek medical attention. |
| Eye Contact | Immediately flush with plenty of water or saline for at least 15 minutes, lifting eyelids to ensure thorough rinsing. If discomfort persists, seek immediate medical attention. |
| Ingestion | Rinse mouth with water; do NOT induce vomiting. If symptoms occur, seek immediate medical attention. |
Small Spills: Absorb with inert absorbent material (e.g., sand, vermiculite) and place into a sealed container for disposal.
Large Spills: Dike to contain, use explosion-proof pump to transfer to recovery containers. Prevent spill from entering sewers, surface water, and groundwater. After cleanup, wash the contaminated area with water and properly dispose of waste.
| Item | Description |
|---|---|
| Suitable Extinguishing Media | Water fog, alcohol-resistant foam, dry powder, carbon dioxide |
| Special Hazards | Combustion may produce irritant or toxic fumes such as carbon monoxide and carbon dioxide |
| Protective Equipment | Firefighters should wear self-contained positive-pressure breathing apparatus and full protective clothing |
| Other Precautions | Cool containers exposed to fire with water spray; collect contaminated firefighting water for treatment; do not discharge into the environment |