Complete Analysis of Physicochemical Technical Parameters of Isomeric Alcohol Ether Phosphate E-1310P
Detailed Description
Isomeric alcohol ether phosphate E-1310P, chemical name Isotrideceth-10 Phosphate, is an anionic surfactant. Its molecular structure is a mixture of monoester [C₁₃H₂₇O(C₂H₄O)₁₀PO₃H₂] and diester [C₁₃H₂₇O(C₂H₄O)₁₀]₂PO₂H, with an ethylene oxide polymerization degree of n≈10 and a molecular weight of approximately 730. There is no CAS number currently. At room temperature, the product appears as a colorless to light yellow transparent liquid with a slight characteristic odor.
E-1310P is known for its excellent extreme pressure lubricity, strong penetration and wetting ability, and outstanding chemical stability. Its HLB value is between 13-15, exhibiting low foaming properties and excellent alkali resistance (stable in 100g/L NaOH solution). This product shows good tolerance to acids, alkalis, and hard water media, maintaining activity over a wide pH range. It is a key raw material for formulating high-performance metalworking fluids and textile pretreatment auxiliaries.
Technical Parameters
I. Basic Physicochemical Parameters
| Parameter Item | Index Range | Test Conditions |
|---|
| Appearance | Colorless to light yellow transparent liquid | Visual at room temperature |
| Ionic Type | Anionic | — |
| Active Content | ≥99% | — |
| Moisture | ≤1.0% | — |
| pH Value (1% aqueous solution) | 2.0~3.0 | 25°C |
| pH Value (5% aqueous solution) | 2.0~3.0 | 25°C |
| Melting Point | < -10°C | — |
| Flash Point | >100°C | — |
| Density | 1.02~1.06 g/cm³ | 25°C |
| Kinematic Viscosity | 200-400 mm²/s | 25°C |
| Low Shear Viscosity | 200-500 mPa·s | 25°C |
| Refractive Index | 1.456-1.460 | 25°C |
| Hygroscopicity | Hygroscopic | — |
| Solubility | Easily soluble in water | — |
| Chemical Stability | Stable under normal conditions, avoid contact with strong oxidizers | — |
| Cloud Point | No data available | — |
II. Surface Activity Parameters
| Parameter Item | Index Range | Test Conditions |
|---|
| HLB Value | 13-15 | — |
| Surface Tension | ≤32 mN/m | 1% aqueous solution, 25°C |
| Critical Micelle Concentration (CMC) | 200-500 mg/L | — |
| Penetration Power | ≤10 seconds | Standard canvas sedimentation method |
| Foam Characteristics | Low foaming | — |
| Alkali Resistance | Stable in 100g/L NaOH solution | — |
III. Composition and Characteristic Parameters
| Parameter Item | Index Range | Description |
|---|
| Acid Value | 100-180 mg KOH/g | Reflects the acidic group content of phosphate ester |
| Iodine Value | ≤1 | Indicates extremely low unsaturated bond content |
| Saponification Value | ≤20 | — |
| Hydroxyl Value | ≤10 | — |
| Unsaturation | ≤0.04 mol/kg | — |
| Free Phosphoric Acid | ≤0.5% | — |
| Free Alcohol | ≤1.0% | — |
| Monoester Content | ≥60% | Phosphate monoester, core component for extreme pressure lubrication |
| Diester Content | ≤40% | Phosphate diester |
| Bound Phosphorus Content | 5.0-8.0% (as P₂O₅) | — |
IV. Safety and Environmental Parameters
| Parameter Item | Index Range | Description |
|---|
| Acute Oral Toxicity (Rat LD50) | ＞2000 mg/kg | Low to moderate toxicity |
| Fish 96-hour LC50 | ＞10 mg/L | Low aquatic toxicity |
| Daphnia 48-hour EC50 | ＞100 mg/L | — |
| Biodegradation Rate | ＞60% | OECD 301 method, biodegradable |
| Heavy Metals | ≤10 mg/kg | — |
| Arsenic | ≤2 mg/kg | — |
Application Recommendations
Based on the above technical parameters, the application recommendations for E-1310P are as follows:
- Metalworking Fluids: Utilizing the excellent extreme pressure lubricity from high monoester content (≥60%), it is recommended to add 3%-8% in cutting fluid and grinding fluid formulations to significantly reduce friction coefficient and extend tool life. The low foaming characteristic makes it particularly suitable for high-pressure, high-flow machining conditions.
- Textile Pretreatment: Benefiting from penetration power ≤10 seconds and alkali stability, it is recommended to add 5%-15% in scouring agent formulations to efficiently remove cotton fiber wax and improve whiteness uniformity.
- Pesticide Emulsifier: With HLB value 13-15 suitable for preparing O/W emulsion systems, the recommended dosage is 2%-6% to prepare stable and uniform emulsifiable concentrates or microemulsions.
- Industrial Cleaners: Utilizing its low foaming and excellent degreasing and decontamination ability, it is recommended to add 1%-5% in heavy-duty cleaning formulations.
Precautions
- Storage Container Material: Use containers made of stainless steel, polyethylene (PE), or polypropylene (PP); avoid carbon steel, aluminum, or copper containers as prolonged contact may cause corrosion.
- Storage Temperature: It is recommended to store in a cool place at 5°C to 40°C.
