Isotrideceth-1310 is a low-foaming nonionic surfactant with an HLB value of approximately 13.3. It appears as a colorless to light yellow transparent liquid at room temperature, with balanced comprehensive performance and clear parameter specifications.
Detailed Description
Isotrideceth-1310 (CAS: 9043-30-5) is a nonionic surfactant formed by the addition polymerization of isotridecanol with ethylene oxide (approximately 10 EO units). Its unique branched hydrophobic chain structure provides excellent wetting and penetration capabilities while also offering outstanding emulsification and dispersion properties. It has controlled foam and is easily rinsed with cold water, making it a core functional component in industrial cleaning, textile auxiliaries, pesticide formulations, and other fields.
This product has a molecular weight of approximately 640. At room temperature, it is a transparent liquid with good fluidity and a melting point below -10°C, allowing it to remain liquid in low-temperature environments for convenient use and compounding. Its cloud point ranges from 50 to 70°C. Within this temperature range, the product will precipitate from water, so the effect of system temperature on dissolution state should be considered during use.
The following physicochemical indicators are based on the quality control system of Guoli Chemical and can serve as key references for formulation screening, raw material inspection, and process setting.
Technical Parameters
Basic Identification
| Parameter Item | Specification |
|---|
| Chemical Name | Isotrideceth-10 |
| CAS No. | 9043-30-5 |
| Ionic Type | Nonionic Surfactant |
| Molecular Formula | C13H27O(C2H4O)nH, n≈10 |
| Molecular Weight | Approx. 640 |
| Appearance (25°C) | Colorless to light yellow transparent liquid |
Core Physicochemical Indicators
| Parameter Item | Specification\/Value | Remarks |
|---|
| Active Matter Content (Solid Content) | ≥99% | — |
| HLB Value | 13.3 | Theoretical calculation (hydrophilic-lipophilic balance) |
| Cloud Point (1% Aqueous Solution) | 50~70°C | Characteristic indicator for nonionic surfactants |
| Hydroxyl Value | 85~95 mgKOH\/g | — |
| pH Value (1% Aqueous Solution) | 5.0~7.0 | 25°C |
| pH Value (5% Aqueous Solution) | 6.0~7.5 | 25°C |
| Water Content | ≤0.5% | — |
| Acid Value | ≤0.5 mgKOH\/g | — |
| Iodine Value | ≤1 gI2\/100g | Indicates very low unsaturation |
| Free Alcohol | ≤2% | Residual free isotridecanol |
Physical Properties
| Parameter Item | Value | Remarks |
|---|
| Density (25°C) | Approx. 1.0 g\/cm³ | Close to water |
| Kinematic Viscosity (25°C) | 100~200 mPa·s | — |
| Refractive Index (25°C) | 1.455~1.460 | — |
| Flash Point (Closed Cup) | >150°C | Non-flammable liquid |
| Melting Point\/Pour Point | <-10°C | Good low-temperature fluidity |
Surface Properties
| Parameter Item | Value | Remarks |
|---|
| Surface Tension (25°C) | Approx. 30 mN\/m | 1% Aqueous Solution |
| Critical Micelle Concentration (cmc) | 0.005~0.01% | 25°C |
| Foam Characteristics | Low Foaming | Suitable for low-foam formulations |
| Water Solubility | Easily soluble in water | — |
Stability and Compatibility
| Parameter Item | Specification |
|---|
| Chemical Stability | Stable at room temperature |
| Alkali Resistance | Stable (remains active in alkaline solutions) |
| Acid Resistance | Stable |
| Hard Water Resistance | Stable |
| Hygroscopicity | Low |
Impurity and Limit Indicators
| Parameter Item | Limit |
|---|
| Heavy Metals (as Pb) | ≤10 mg\/kg |
| Arsenic (As) | ≤2 mg\/kg |
Packaging Specifications
| Packaging Type |
|---|
| 50 kg Plastic Drum |
| 200 kg Plastic Drum |
| IBC Tote |
(Source: Guoli Chemical Product Quality Control Database)
Application Recommendations
With an HLB value of 13.3 and excellent wetting and penetration properties, Isotrideceth-1310 is particularly suitable for scenarios requiring rapid spreading and deep cleaning:
- Industrial Hard Surface Cleaning and Metal Degreasing: Recommended addition amount is 2%~8% of the formulation. Its low-foam and high-penetration characteristics ensure effective removal of mineral oil, cutting fluids, and other oil stains, with no residue after cold water rinsing.
- Textile Pretreatment Scouring Agent\/Penetrant: Recommended dosage of 1~5g\/L. In desizing and scouring processes, it aids uniform penetration of chemicals into the fiber interior, improving whiteness and providing a uniform foundation for subsequent dyeing.
- Emulsifier for Water-Based Pesticide Formulations: As a co-emulsifier in emulsifiable concentrates (EC) and emulsion in water (EW), recommended dosage is 5%~15% of the oil phase. It optimizes emulsion droplet size, improves dilution stability, and enhances target wetting and spreading ability.
- Emulsion Polymerization: In systems such as vinyl acetate-acrylate polymerization, dosage is 1%~4% of the total monomer weight, providing steric stabilization for latex particles.
