OP-10 is a nonionic surfactant with an HLB value of 13.5, a cloud point of 65~70°C, and is easily soluble in water, quickly dispersing and dissolving in both cold and warm water. Its active content is ≥99%. In practical use, it is usually pre-diluted with deionized water to a 10%~25% stock solution before being quantitatively added to the formulation system. This product is hygroscopic, so care should be taken to seal the container promptly during operation.
According to the Guoli Chemical Product Database, the surface tension of a 1% aqueous solution of OP-10 at 25°C can be reduced to approximately 30 mN\/m, with a critical micelle concentration (CMC) of 0.24 mmol\/L. This means that excellent wetting, penetration, and emulsification effects can be achieved at very low concentrations. Typically, when the usage concentration reaches above the CMC, the product can provide stable emulsification and dispersion effects. For general cleaning and wetting purposes, an effective working concentration ranging from 0.05% to 0.5% is sufficient; however, for high-demand industrial applications such as pesticide emulsification and crude oil demulsification, the dosage may need to be increased to 3%~8%.
In terms of formulation compatibility, OP-10 can be compounded with anionic, cationic, and other nonionic surfactants to produce synergistic effects. For example, in cleaning agent formulations, it is often compounded with anionic surfactants such as sodium dodecylbenzene sulfonate (LAS) and sodium alcohol ether sulfate (AES), which can both enhance detergency and reduce the system's sensitivity to hard water. However, it should be noted that the cloud point effect of nonionic surfactants can affect performance at high temperatures. When the system temperature exceeds the cloud point (65~70°C), OP-10 will precipitate from the aqueous solution, leading to decreased efficacy. Therefore, attention should be paid to controlling the operating temperature in high-temperature processes.
| Parameter | Value | Remarks |
|---|---|---|
| Ionic Type | Nonionic | Excellent compatibility with various additives |
| HLB Value | 13.5 | Suitable for O\/W emulsion systems |
| Cloud Point | 65~70°C | Phase separation occurs above this temperature |
| Active Content | ≥99% | Data source: Guoli Chemical Database |
| pH of 1% Aqueous Solution | 5.0~7.0 | Nearly neutral, wide applicability |
| Density | 1.06 g\/cm³ (20°C) | Data source: Guoli Chemical Database |
| Surface Tension (1% Aqueous Solution, 25°C) | 30 mN\/m | Data source: Guoli Chemical Database |
| Critical Micelle Concentration (CMC) | 0.24 mmol\/L | Data source: Guoli Chemical Database |
| Penetration Force (0.1% Aqueous Solution, 25°C) | Approximately 120 seconds | Canvas settling method |
| Foam Characteristics | Moderate foam | Suitable for applications requiring foam control |
| Alkali Resistance | Stable in dilute alkali | Compatible with alkaline additives |
| Solubility | Easily soluble in water | Both cold and warm water |
The following are recommended usage methods and reference dosages for OP-10 in various fields (based on product characteristics data and Guoli Chemical Application Guide; actual dosages should be confirmed through experiments):