Isomeric Alcohol Polyether E-1303 (CAS Number: 9043-30-5) is a nonionic surfactant produced by the addition of 3 moles of ethylene oxide to isomeric tridecanol. Due to the low ethylene oxide addition number (n≈3), the product exists in a dispersed state rather than completely dissolved in water. In practical use, it is recommended to pre-mix the product with the oily components or solvents in the formulation, or slowly add it to warm water at 40~50°C under stirring to achieve a uniform working solution. Its branched hydrophobic structure endows the product with excellent wetting, penetrating, and emulsifying properties, while producing extremely low foam, making it particularly suitable for industrial cleaning processes that require quick rinsing.
The product has an HLB value of 8, leaning towards the water-in-oil (W/O) emulsifier category, and performs exceptionally well in emulsion polymerization and pesticide emulsifiable concentrate formulations. The cloud point range is 30~45°C, and it may precipitate out in high-temperature systems. Therefore, when applied in high-temperature processes, attention should be paid to temperature control or the product should be compounded with high-EO number products to raise the cloud point. The product exhibits excellent chemical stability, can withstand a wide range of acidic and alkaline media and hard water conditions, and has good compatibility with anionic, cationic, and other nonionic surfactants.
| Parameter Item | Value | Parameter Item | Value |
|---|---|---|---|
| Active Matter Content | ≥99% | HLB Value | Approx. 8 |
| Appearance (25°C) | Colorless to light yellow liquid | Cloud Point | 30～45°C |
| pH (1% Aqueous Solution) | 5.0～7.0 | Solubility | Dispersible in water |
| Penetration Force (0.1% Aqueous Solution) | 5～10 seconds (Standard Canvas Method) | Foam Characteristics | Low Foam |
| Surface Tension | 25～30 mN/m | Ionic Type | Nonionic |
| Density (25°C) | 0.92～0.95 g/cm³ | Flash Point | >150°C |
Data Source: Guoli Chemical Product Database
Pre-treatment before use: Since the product is in a dispersed state rather than completely dissolved in water, it is recommended to pre-mix E-1303 with oily components, solvents, or a small amount of warm water (40~50°C) in the formulation, then add it to the main system under stirring to ensure uniform dispersion.
Reference dosages for various fields (based on industry practice, specific amounts need to be verified through experiments):
| Application Field | Recommended Dosage (as % of total formula) | Usage Instructions |
|---|---|---|
| Industrial Hard Surface Cleaners | 1%～5% | Compound with anionic surfactants (e.g., LAS, AES) to enhance degreasing and penetrating ability |
| Metal Cleaners (Water-based) | 0.5%～3% | Use in combination with alkaline additives to leverage low-foam and easy-rinsing advantages |
| Textile Scouring Agents/Penetrants | 2%～8% (before dilution of working solution) | Compound with anionic and phosphate ester types to enhance wetting and penetrating effects on fibers |
| Leather Degreasing Agents | 3%～10% | As the main emulsifier, quickly penetrate and emulsify natural oils in leather interiors |
| Pesticide Emulsifiable Concentrates/Emulsions in Water | 5%～10% | As a nonionic emulsifier, used in combination with anionic emulsifiers (e.g., calcium salts) |
| Emulsion Polymerization | 0.5%～2% (based on monomer weight) | Provides polymerization stability, works better when used synergistically with anionic emulsifiers |
| Cosmetic Creams/Lotions | 0.5%～2% | Aids emulsification, needs to be compounded with high HLB value emulsifiers to construct O/W systems |
Note: The above dosages are industry experience reference values. The actual optimal dosage should be determined through experiments based on the specific formulation system. The Guoli Chemical Product Database does not have specific dosage data for each application field.