According to the technical data from Guoli Chemical, the core advantages of OPE-105 over common similar octylphenol polyoxyethylene ether products on the market are: **extremely high effective content bringing high purity, broad chemical tolerance ensuring process stability, and high efficiency at very low dosage determined by low CMC value**.
Below is a detailed comparative analysis based on real data from Guoli Chemical's database:
### 1. Core Performance Advantages
**High Purity and High Activity**
Guoli Chemical's OPE-105 has **effective content ≥98.0%**, with free alcohol content controlled at **≤0.5%**. High purity means minimal inactive or side-reaction substances in formulations, which not only reduces the risk of side reactions but also exhibits sharper and more efficient interfacial characteristics in applications.
**Excellent Emulsification and Dispersion Efficiency**
The product has an HLB value of **13.5**, which is in the classic efficient range for O/W emulsifiers. Its **critical micelle concentration (CMC) is only 0.05~0.1 mmol/L**, far lower than conventional surfactants. This means that at very low addition levels, it can achieve ideal surface/interfacial tension (**1% aqueous solution surface tension 30~32 mN/m**), forming micelles and performing emulsification and dispersion functions, helping to reduce overall formulation costs.
**Superior Chemical and Hard Water Stability**
According to clear records in the database, OPE-105 **remains stable in acids, alkalis, and hard water**. This characteristic ensures it does not fail due to hydrolysis or formation of calcium soap in extreme conditions such as alkali-resistant textile pretreatment, acid-resistant metal pickling, or pesticide preparation using high-hardness groundwater.
### 2. Detailed Technical Parameter Comparison
| Technical Indicator | Guoli Chemical OPE-105 Typical Data | Common Range for Similar General Products | Advantage Interpretation |
| :--- | :--- | :--- | :--- |
| **Effective Content** | **≥98.0%** | Usually ≥99% (but including water or alcohol) | Guoli Chemical explicitly states free alcohol ≤0.5%, with more reliable purity |
| **Cloud Point (1% aqueous solution)** | **65~75℃** | 60-80℃ (varies with EO number) | The hydrophilic-lipophilic balance of 10.5 EO is precise, with a clear process window |
| **HLB Value** | **13.5** | About 12.5-14.0 | Precise HLB value makes emulsification oil phase selection more targeted |
| **Critical Micelle Concentration (CMC)** | **0.05~0.1 mmol/L** | Usually not detailed | Extremely low CMC means high cost-effectiveness, effective at low concentrations |
| **Acid, Alkali, and Hard Water Resistance** | **Explicitly stated: Stable** | Some products may become turbid or separate in concentrated alkali | Strong applicability, can be directly used in harsh environments like high-alkali scouring, acid cleaning |
| **Foaming Characteristics** | **Low Foam** | Some grades may have higher foaming | Particularly suitable for industrial cleaning, metalworking, and other scenarios requiring quick defoaming or low foam |
### 3. Application Suggestions and Recommended Dosage
Based on the above advantages, Guoli Chemical OPE-105 performs exceptionally well in the following applications:
- **Textile Scouring Penetrant**: Recommended dosage **1~3 g/L**. Utilizes its alkali resistance and penetrability to quickly remove impurities during desizing and scouring.
- **Industrial Hard Surface Degreasing Cleaner**: Recommended dosage **2~5%** (of total formulation). Combined with low foam characteristics, suitable for high-pressure spray and ultrasonic cleaning.
- **Pesticide Emulsion in Water/Emulsifiable Concentrate**: Recommended dosage **5~10%**. Based on precise HLB value and low CMC, stable emulsion particle size can be achieved with less emulsifier.
- **Metalworking Fluid**: Recommended dosage **3~8%**. Provides multiple functions of lubrication, rust prevention, and low foam.
### 4. Handling and Safety Precautions
- **Environmental Friendliness**: This product contains H411 aquatic toxicity warning, and operating procedures must be strictly followed. **Do not discharge waste liquid directly into water bodies.**
- **Personal Protection**: The product is classified as **Eye Damage Category 1 (H318)**. Wear protective goggles during operation; skin contact may cause irritation (H315), so wear impermeable gloves such as nitrile.
- **Storage Conditions**: It is hygroscopic in open environments and should be stored sealed at **0~30℃**. Low temperatures may cause turbidity or reduced fluidity, which is a normal physical phenomenon; it will return to a clear state after warming to room temperature, without affecting performance.
If you have more detailed performance verification needs for specific formulations (e.g., preparing acidic cleaners in hard water environments), Guoli Chemical can provide technical support and customized sample services.
