The physicochemical technical parameters of OP-30 octylphenol polyoxyethylene ether are comprehensive, covering basic physical properties, surface activity indicators, chemical indicators, and safety-related parameters. It is a typical high HLB value nonionic surfactant.
Detailed Description
OP-30 octylphenol polyoxyethylene ether (CAS No.: 9036-19-5) is a high-purity nonionic surfactant produced by Guoli Chemical. It appears as a white to slightly yellow waxy solid or paste, with a melting point of about 45-55°C. Its molecular structure is C8H17C6H4O(CH2CH2O)nH, where the number of ethylene oxide adducts n≈30, and the molecular weight is approximately 1526. The active matter content of this product is as high as ≥99%, the free alcohol content is ≤0.2%, and the batch-to-batch quality consistency is excellent.
As a typical high HLB value (17) surfactant, OP-30 has a cloud point greater than 100°C, is readily soluble in water, and the pH of its aqueous solution is stable between 5.0 and 7.0. Its surface tension is about 30-32 mN/m, and the critical micelle concentration (CMC) is about 0.1-0.3 mmol/L, demonstrating excellent surface activity efficiency. At the same time, this product has low foaming characteristics and maintains stable chemical performance in acids, bases, and hard water, with good alkali resistance.
In terms of physicochemical testing indicators, the product's hydroxyl value is controlled within 35~40 mgKOH/g, acid value ≤0.5 mgKOH/g, saponification value ≤1 mgKOH/g, iodine value ≤1, and moisture ≤0.5%. Heavy metal content is ≤10 ppm, arsenic content ≤2 ppm, meeting the purity requirements for industrial applications. The product packaging specification is 20kg woven bag, and it should be stored in a cool, dry, and ventilated place, away from fire and heat sources.
Technical Parameters
Basic Physical Property Parameters
| Parameter Item | Indicator Value |
|---|
| CAS No. | 9036-19-5 |
| Molecular Formula | C8H17C6H4O(CH2CH2O)nH, n≈30 |
| Molecular Weight | Approx. 1526 |
| Appearance | White to slightly yellow waxy solid or paste |
| Ionic Type | Nonionic |
| Active Matter Content | ≥99% |
| Melting Point | Approx. 45-55°C |
| Density | Approx. 1.06-1.07 g/cm³ |
| Refractive Index | Approx. 1.48-1.49 |
| Flash Point | >200°C |
| Solubility | Readily soluble in water |
| Hygroscopicity | Hygroscopic |
Surface Activity and Solution Parameters
| Parameter Item | Indicator Value |
|---|
| HLB Value | 17 |
| Cloud Point | >100°C |
| pH (1% aqueous solution) | 5.0~7.0 |
| pH (5% aqueous solution) | 5.0~7.0 |
| Surface Tension | Approx. 30-32 mN/m |
| Critical Micelle Concentration (CMC) | Approx. 0.1-0.3 mmol/L |
| Foaming Property | Low foaming |
| Penetration Power | >300s |
| Kinematic Viscosity | Approx. 180-250 mm²/s |
| Low Shear Viscosity | Approx. 300-500 mPa·s |
Chemical Quality Indicators
| Parameter Item | Indicator Value |
|---|
| Hydroxyl Value | 35~40 mgKOH/g |
| Acid Value | ≤0.5 mgKOH/g |
| Saponification Value | ≤1 mgKOH/g |
| Iodine Value | ≤1 |
| Amine Value | ≤0.1 |
| Moisture | ≤0.5% |
| Free Alcohol | ≤0.2% |
| Heavy Metals (as Pb) | ≤10 ppm |
| Arsenic (As) | ≤2 ppm |
| Free Phosphoric Acid | None |
| Chemical Stability | Stable in acids, bases, and hard water |
| Alkali Resistance | Good |
Packaging Specification
| Parameter Item | Indicator Value |
|---|
| Packaging | 20kg woven bag |
