Alkali-resistant penetrant AEP is an anionic surfactant. During use, special attention should be paid to personal protection (preventing skin and eye irritation), standardized storage (5℃～40℃, sealed and protected from light), and strict prevention of leakage into the environment and water bodies.
Detailed Description
Alkali-resistant penetrant AEP (fatty alcohol polyoxyethylene ether phosphate, CAS: 68439-39-4) is an anionic surfactant with excellent resistance to strong alkali, high temperature, and hard water. It is widely used in textile printing and dyeing, leather, papermaking, metal cleaning, and other fields. However, due to its chemical properties, there are safety risks such as skin irritation, eye irritation, and hazards to the aquatic environment during use. The following precautions must be strictly followed during operation.
During use, operators should receive specialized training and operate in well-ventilated areas, avoiding inhalation of vapors or mists. After operation, skin should be thoroughly cleaned. The work area should be equipped with eyewash stations and emergency showers for emergency use. In case of skin contact, immediately remove contaminated clothing and wash thoroughly with plenty of running water and soap. For eye contact, rinse with running water or saline for at least 15 minutes and seek medical attention immediately.
In addition, this product has outstanding alkali resistance and can withstand strong alkali environments of up to 200g\/L NaOH. Its chemical structure does not decompose or separate oil under high-temperature boiling conditions. However, compatibility tests should still be conducted before use to optimize the process formulation and ensure compatibility with other auxiliaries (such as acids, oxidizers, etc.) in the recipe. Waste and cleaning wastewater must be treated to meet standards before discharge, and direct discharge into water bodies is strictly prohibited.
Technical Parameters
| Item | Specification |
|---|
| Appearance | Colorless to light yellow transparent liquid |
| Ionic type | Anionic |
| Active content | ≥98.0% |
| pH value (1% aqueous solution) | 5.0～7.0 |
| HLB value | 11～12 |
| Density (g\/cm³) | 1.05～1.10 |
| Penetrating power | ≤10s |
| Alkali resistance | Can withstand 200g\/L NaOH |
| Foam properties | Low foam |
| Kinematic viscosity (mPa·s) | 200～500 |
| Flash point | >100℃ (non-flammable and non-explosive) |
| Free phosphoric acid | ≤5.0% |
| Storage temperature | 5℃～40℃ |
| Packaging specifications | 50kg plastic drum, 200kg plastic drum, IBC tote |
Application Recommendations
In various application fields, the following points should be noted when using alkali-resistant penetrant AEP:
- Textile printing and dyeing: Used in alkali-oxygen one-bath scouring and bleaching, cold pad batch, desizing, and mercerizing penetration processes. It is recommended to conduct small-scale tests to determine the optimal dosage. Typically, the working solution addition amount is 0.5～2g\/L. Its strong alkali resistance ensures that the penetrating power does not decrease in a bath of 200g\/L NaOH.
- Leather processing: Used in soaking and degreasing stages to help accelerate hide rewetting and deep degreasing. Recommended for use under medium alkaline conditions.
- Metal surface treatment and industrial cleaning: As the core penetrating component in alkaline degreasing cleaning formulations, it can be used in combination with alkalis, chelating agents, etc. Its low-foam properties make it suitable for high-pressure spray and immersion cleaning processes.
- Papermaking industry: Added in waste paper deinking and alkaline pulping stages to promote liquor penetration, improve deinked pulp brightness and pulp yield.
Compatibility tests are recommended before all applications to determine the optimal dosage and process conditions.
Precautions
- Health hazards: GHS classification as skin irritant Category 2 (H315), serious eye irritant Category 2 (H319). Wear chemical protective gloves, protective clothing, protective goggles\/face shield during operation.
- Environmental hazards: Harmful to aquatic organisms (H402). Do not discharge the product or cleaning wastewater directly into rivers, lakes, or other natural water bodies. Waste must be collected and disposed of in accordance with regulations.
- Storage incompatibilities: Store separately from acids, oxidizers, food, and feed. Storage temperatures exceeding 40℃ may cause product deterioration; below 5℃ may affect fluidity.
- Container selection: Packaging and storage containers must be made of alkali-resistant materials (e.g., polyethylene, stainless steel) to prevent corrosion and leakage.
- Emergency evacuation: Although the product is non-flammable and non-explosive, thermal decomposition may produce toxic fumes such as carbon monoxide and carbon dioxide. In case of fire, firefighters should wear self-contained breathing apparatus and fight the fire from upwind.
