Precautions for using low-foam penetrating agent SF?

Low-foam penetrating agent SF has high safety in use, but it is still necessary to strictly follow the key points of personal protection, standardized storage, reasonable dosage, and emergency treatment to ensure process effectiveness and personnel safety.

Detailed Description

Low-foam penetrating agent SF (fatty alcohol polyoxyethylene ether phosphate) is a special surfactant with both nonionic and anionic properties, with CAS number 26468-86-0. According to the Guoli Chemical product database, this product does not belong to the physical, health, or environmental hazard categories defined by GHS. The acute oral toxicity LD₅₀ > 2000 mg/kg bw, rabbit skin irritation score is less than 0.5 (non-irritating), flash point >150°C, and it is a non-flammable liquid. Despite this, general chemical safety regulations should still be followed during use, and protection should not be neglected due to low toxicity.

The outstanding technical characteristics of this product – strong alkali resistance (can withstand 300g/L NaOH solution), acid resistance, hard water resistance, low foaming, and strong penetrating power (1% aqueous solution canvas sinking method ≤10 seconds) – make its application range extremely wide. However, in different application scenarios, attention should be paid to compatibility, addition order, and dosage control to avoid competitive adsorption or precipitation with other excessively anionic auxiliaries. Additionally, the product is slightly hygroscopic. After opening, it should be used as soon as possible and sealed for storage.

Most importantly, although low-foam penetrating agent SF produces very little foam, foam accumulation may still occur in high-speed injection or closed circulation systems when compounded with a large amount of other high-foaming auxiliaries. Therefore, it is recommended to conduct small-scale tests before use to verify the overall foam performance of the system. At the same time, waste liquid should not be directly discharged into water bodies; it should be disposed of by qualified institutions in accordance with local environmental regulations.

Technical Parameters

Application Recommendations

• Textile Industry: Used for desizing, scouring, bleaching, and dyeing processes of cotton, linen, synthetic fibers, and their blends. Recommended dosage is 0.1% to 0.5% (by weight) of the working solution. It performs stably in high-alkali (NaOH concentration up to 300g/L) processes, helping to improve treatment uniformity and production efficiency.
• Industrial Hard Surface Cleaning: Used for metal parts cleaning and CIP online cleaning systems. Recommended dosage is 0.05% to 0.2%. When used with alkaline or acidic cleaners, it can rapidly wet and penetrate dirt layers under low-foaming conditions.
• Paper Deinking: As a component of deinking agents, recommended dosage is 0.1% to 0.3% of the absolute dry pulp, promoting the separation of ink particles from fiber surfaces, improving deinking efficiency and pulp brightness.
• Leather Processing: In soaking and degreasing processes, recommended dosage is 0.2% to 0.5% (based on leather weight), accelerating water penetration and natural grease removal.
• Pesticide Synergist: As a wetting and penetrating auxiliary for wettable powders or water-based suspensions, recommended addition amount is 1% to 5% of the total formulation, significantly reducing the surface tension of the liquid, enhancing spreading and penetration capabilities.

Precautions

• Personal Protection: Wear chemical safety goggles, protective gloves, and work clothes during operation to avoid prolonged direct contact with eyes and skin; thoroughly wash hands and contact areas after operation.
• Ventilation and Fire Sources: Maintain good ventilation in the workplace to avoid accumulation of continuous aerosols. Although this product is non-flammable, it should still be kept away from fire and heat sources. Do not eat, drink, or smoke in the work area.
• Storage Management: Store in a cool, dry, well-ventilated warehouse, away from direct sunlight, with temperature controlled at 5°C to 35°C. Containers must be sealed to prevent moisture absorption and ingress of foreign matter. Do not store with food, feed, or drinking water. Equip with leak-proof trays.
• Empty Container Disposal: Empty containers may contain residues and should not be used for other substances without professional cleaning. Dispose of as industrial solid waste by qualified institutions.
• Waste Liquid Disposal: Product waste and contaminated packaging must not be discharged into the environment or sewers. Dispose of in accordance with local, national, and international environmental regulations by qualified waste disposal agencies.
• Spill Emergency: For small spills, cover with inert absorbent materials such as vermiculite or sand and collect in a sealed container; for large spills, dike to contain and prevent entry into sewers or water bodies. Clean contaminated surfaces and dispose of collected material according to regulations.
• First Aid Measures: Skin contact – Remove contaminated clothing, rinse with plenty of water and soap for at least 15 minutes; seek medical attention if irritation occurs. Eye contact – Open eyelids and rinse continuously with water or saline for at least 15 minutes, then seek medical attention. Inhalation – Move to fresh air, keep breathing unobstructed; if discomfort, seek medical attention. Ingestion – Do not induce vomiting, rinse mouth with water, drink water to dilute, and seek immediate medical attention.