Before using C13 Alcohol Polyether E-1340, it is essential to fully understand its dispersion/dissolution methods in different application fields. The Guoli Chemical database does not provide a unified standard dosage for various application scenarios. The recommended dosage is typically 1% to 10% of the total formulation, which must be determined through experiments based on the specific system.
Detailed Description
C13 Alcohol Polyether E-1340 (Isotridecanol polyoxyethylene (13) ether) is a nonionic surfactant with an HLB value in the range of 13.5 to 14.5. It is easily soluble in water and appears as a colorless to slightly yellow transparent liquid or paste at room temperature. It is usually added directly to the aqueous phase with stirring for dispersion, or it can be pre-mixed with the oil phase before emulsification. Since the product has a cloud point of approximately 60 to 70°C, care should be taken during heating operations not to exceed this temperature range, to avoid affecting emulsification efficiency and system stability. The product features low foaming characteristics, performing exceptionally well in cleaning formulations that require quick rinsing or foam suppression.
In practical operation, it is recommended to pre-dilute C13 Alcohol Polyether E-1340 with deionized water or aqueous components in the formulation to a concentration of 10% to 20%, stir until fully dissolved, and then add it to the main reactor or mixing tank for combination with other ingredients. For emulsion polymerization processes, it can be used as a monomer emulsifier in pre-emulsion preparation; in pesticide emulsifiable concentrate or emulsion formulations, it is usually compounded with anionic emulsifiers (such as calcium salts) to achieve better emulsification stability. This product has excellent chemical stability, maintaining stable performance under acidic, alkaline, and hard water conditions, offering strong adaptability.
Technical Parameters
| Parameter | Value/Range | Parameter | Value/Range |
|---|
| Appearance (25°C) | Colorless to slightly yellow transparent liquid | HLB Value | 13.5~14.5 |
| Active Content | ≥99% | Cloud Point (1% aqueous solution) | 60~70°C |
| Hydroxyl Value | 58~68 mg KOH/g | pH of 1% Aqueous Solution | 5.5~7.5 |
| Surface Tension (0.1% aqueous solution, 25°C) | Approx. 30 mN/m | Critical Micelle Concentration (CMC) | Approx. 0.005% (by weight) |
| Density (20°C) | Approx. 1.05 g/cm³ | Kinematic Viscosity (25°C) | Approx. 150 mm²/s |
| Moisture Content | ≤0.5% | Acid Value | ≤0.5 mg KOH/g |
| Free Alcohol | ≤1% | Flash Point (Closed Cup) | >150°C |
Note: The above data are sourced from the Guoli Chemical product database.
Application Recommendations
Based on the HLB value and performance characteristics of C13 Alcohol Polyether E-1340, the following are reference dosages for various fields (expressed as a percentage of the total formulation weight; actual dosage should be verified through experiments):
- Textile Scouring Agent/Penetrant: Recommended dosage 2%~8%. Add directly in the pretreatment bath, utilizing its excellent wetting and penetrating ability to help remove cotton wax, size, and other impurities.
- Industrial Hard Surface Cleaner: Recommended dosage 1%~5%. Combine with anionic surfactants (such as LAS, AES) and builders to enhance emulsification and removal of oil and grease; low foaming property facilitates high-pressure spraying and quick rinsing.
- Leather Degreasing Agent: Recommended dosage 3%~8%. Use alone or in combination with solvents in the degreasing process, providing strong emulsification and removal of natural fats.
- Wetting and Dispersing Agent for Waterborne Coatings/Inks: Recommended dosage 0.2%~1% (based on pigment/filler weight). Add during the grinding stage to rapidly wet the surface of pigment particles, preventing flocculation and sedimentation.
- Pesticide Emulsifiable Concentrate/Emulsion: As an emulsifier component, recommended dosage 5%~12%. Usually compounded with anionic emulsifiers in a certain ratio to obtain stable emulsion preparations and good spreading performance of the spray liquid.
- Metalworking Fluid/Cutting Fluid: Recommended dosage 2%~6%. Provides lubrication, cleaning, and some auxiliary anti-rust effects in semi-synthetic or full-synthetic formulations.
- Emulsion Polymerization: Recommended dosage 0.5%~2% (based on monomer weight). Used as a primary or auxiliary emulsifier to obtain polymer emulsions with fine and uniform particle size.
Precautions
- Eye protection is the highest priority: This product is classified as GHS Category 1 for eye damage (H318, causes serious eye damage). Chemical safety goggles must be worn during operation. If splashed into eyes, immediately rinse with plenty of water for at least 15 minutes and seek medical attention.
- Wear chemical-resistant protective gloves and protective clothing to avoid skin contact (H315, causes skin irritation).
- When preparing aqueous solutions, it is recommended to stir and dissolve at room temperature to 40°C, avoiding prolonged heating above the cloud point temperature (60~70°C) to prevent product precipitation from affecting performance.
- Inhalation of vapor or mist may cause discomfort; operate in a well-ventilated area, and use local exhaust ventilation if necessary.
- Do not discharge waste directly into drains or water bodies (H412, harmful to aquatic life with long-lasting effects). Dispose of through qualified waste treatment facilities in compliance with regulations.
