According to the technical data from Guoli Chemical, the existing product database mainly contains complete information on the OP-30 model, lacking independent data entries for other similar grades such as OP-10, making direct horizontal numerical comparison impossible. However, based on the detailed parameters of OP-30 Octylphenol Polyoxyethylene Ether in the database, I can summarize the core performance advantages of this product compared to similar ones:
As a nonionic surfactant with a high ethylene oxide (EO) addition number (n≈30), the core advantages of OP-30 are mainly reflected in its extremely strong hydrophilicity and excellent high-temperature chemical stability, making it particularly outstanding in specific high-temperature and high-electrolyte systems.
#### 1. Extremely Strong Hydrophilicity and High HLB Value
OP-30 has a long EO chain, giving it very high hydrophilicity.
* **Specific Data**: Its HLB value is as high as **17**, far higher than that of general OP series products with medium and low EO numbers (e.g., the HLB value of OP-10 is usually around 13-14).
* **Advantage**: This means OP-30 is an excellent oil-in-water (O/W) emulsifier and solubilizer, effectively dispersing oily substances in water to form stable aqueous solutions or emulsions.
#### 2. Excellent High-Temperature Stability
The long EO chain gives OP-30 a very high cloud point, preventing it from precipitating and losing efficacy at high temperatures.
* **Specific Data**: The cloud point of a 1% aqueous solution is **greater than 100℃**, while that of OP-10 is usually 60-70℃.
* **Advantage**: This characteristic makes OP-30 an ideal choice for high-temperature cleaning, high-temperature dyeing, oilfield thermal recovery, and other processes requiring high-temperature operation, where its surface activity is essentially unaffected.
#### 3. Excellent Chemical Stability and Low Foaming Properties
As a mature product series, OP-30 inherits several excellent properties in this field.
* **Chemical Stability**: It maintains stable performance in acids, alkalis, and hard water, and does not form precipitates with calcium and magnesium ions.
* **Foam Characteristics**: It features **low foaming**, making it especially suitable for industrial cleaning, metalworking fluids, and other scenarios requiring quick rinsing or mechanical agitation.
* **Specific Data**: Its penetration force test value is >300 seconds (similar to other high-EO products, mainly for wetting and emulsification), but combined with its excellent dispersion and detergency, it is highly effective in cleaning complex soils.
#### 4. Highly Focused Application Fields
Due to its characteristics, OP-30 has greater advantages over similar products with medium and low EO numbers in certain specific high-end fields:
* **Emulsion Polymerization**: As a key emulsifier, it provides reactive micelles for systems such as acrylates, resulting in finer particle size and higher stability of the polymer emulsion.
* **High-Temperature Cleaners**: In processes requiring high-temperature operation, such as desizing and scouring in the textile industry and metal degreasing, its wetting and detergency advantages are irreplaceable.
**Summary Table of Key Parameters of OP-30 Octylphenol Polyoxyethylene Ether**
| Item | Parameter | Industry Significance |
| :--- | :--- | :--- |
| **Appearance** | White to slightly yellow solid/paste | High active content, high purity |
| **Ionic Type** | Nonionic | Good compatibility, can be compounded with cations, anions, and solvents |
| **HLB Value** | **17** | Extremely strong hydrophilicity, O/W emulsifier, solubilizer |
| **Cloud Point (1% aqueous solution)** | **>100℃** | Excellent high-temperature stability, suitable for high-temperature processes |
| **Hydroxyl Value (mgKOH/g)** | 35~40 | Can be used as a chemical synthesis raw material |
| **Active Content** | ≥99% | Reduces ineffective components, improves application efficiency |
| **Surface Tension (mN/m)** | About 30-32 | Effectively reduces water surface tension, enhances wettability |
| **Foam Performance** | Low foam | Suitable for circulation pumping, washing, spray processes |
| **Acid/Alkali/Hard Water Resistance** | Stable | Wide applicable conditions, long system life |
**Application Suggestions and Precautions**
* **Application Suggestions**: When using OP-30, if formulating pastes or solid cleaners, it can be directly added to water and heated to melt before compounding; if used in liquid detergents or emulsion polymerization, it is recommended to slowly add it to water under stirring.
* **Precautions**: Despite its excellent performance, OP-30 is irritating to the skin and eyes (H315/H319). Protective gloves and goggles must be worn during operation. Its molecular structure is of the octylphenol type; downstream users should pay attention to relevant environmental regulations.
For detailed data on other models of the OP series, it is recommended to directly contact the Technical Sales Department of Guoli Chemical to obtain comprehensive product specifications.
