Isomeric tridecanol phosphate E-1306P (CAS No.: 9043-30-5) is an anionic surfactant produced by Guoli Chemical using isomeric tridecanol polyoxyethylene ether (n≈6) as raw material through phosphation. The product appears as a light yellow transparent viscous liquid, easily soluble in water, with a molecular weight range of approximately 800~1000, and an HLB value between 7.0 and 9.0. It belongs to the lipophilic-hydrophilic balanced emulsifier, combining good emulsifying dispersion ability and wetting permeability.
The phosphate ester composition of this product mainly consists of monoesters (50%~70%) and diesters (25%~40%). The high monoester content ensures excellent water solubility and emulsifying power, while the appropriate amount of diester imparts outstanding extreme pressure lubricity and anti-rust/corrosion inhibition ability. The product has a free phosphoric acid content ≤0.5%, free alcohol ≤3.0%, active matter content ≥95%, high purity, and few by-products, resulting in minimal interference with the system in practical applications.
In terms of surface activity, the surface tension of a 1% aqueous solution of E-1306P can be reduced to 35~40 mN/m, with a critical micelle concentration (CMC) in the range of 1×10⁻⁴~1×10⁻³ mol/L. It has moderate foaming ability but performs as a low-foaming product, making it especially suitable for industrial formulations sensitive to foam. The product has strong alkali resistance and can maintain stable wetting and penetration activity in high-alkalinity industrial cleaning and textile pretreatment systems.
| Parameter Category | Parameter Name | Technical Indicator |
|---|---|---|
| Basic Physical Properties | Appearance | Light yellow transparent viscous liquid |
| Ionic Type | Anionic | |
| Molecular Weight | 800~1000 | |
| Density (25℃) | 1.05~1.10 g/cm³ | |
| Kinematic Viscosity (25℃) | 200~500 mPa·s | |
| Refractive Index | 1.45~1.47 | |
| Active Matter and Purity | Active Matter/Solid Content | ≥95% |
| Moisture | ≤1.0% | |
| Free Phosphoric Acid (as H₃PO₄) | ≤0.5% | |
| Free Alcohol | ≤3.0% | |
| Heavy Metals (as Pb) | ≤10 mg/kg | |
| Chemical Parameters | Acid Value | 80~120 mgKOH/g |
| Saponification Value | 120~160 mgKOH/g | |
| Hydroxyl Value | ≤20 mgKOH/g | |
| Iodine Value | ≤0.5 gI₂/100g | |
| Unsaturation | <0.01% | |
| Phosphate Ester Composition | Monophosphate Ester Content | 50%~70% |
| Diphosphate Ester Content | 25%~40% | |
| Combined Phosphorus (P) | 5.0%~8.0% | |
| Free Phosphoric Acid | ≤0.5% | |
| Surface Activity Parameters | HLB Value | 7.0~9.0 |
| Surface Tension (1% Aqueous Solution) | 35~40 mN/m | |
| Critical Micelle Concentration (CMC) | 1×10⁻⁴~1×10⁻³ mol/L | |
| Foaming Characteristics | Low Foaming | |
| Penetration Power (Standard Canvas Settling Method) | ≤30 s | |
| Alkali Resistance | Good (Stable in high-alkaline systems) | |
| pH Value | 1% Aqueous Solution | 5.0~7.0 |
| 5% Aqueous Solution | 2.0~4.0 | |
| Water Solubility | Easily soluble in water | |
| Chemical Stability | Stable under normal conditions | |
| Thermodynamic Parameters | Flash Point | >100 |