Isooctanol Penetrant OE-35 (CAS: 68439-51-0) is a nonionic surfactant with isooctyl alcohol polyoxyethylene (35) ether as the active ingredient. It has an HLB value of 13.5, is easily soluble in water, and its 1% aqueous solution pH is 5.0~7.0. It exhibits excellent acid, alkali, and hard water resistance. This product can be used at both room temperature and elevated temperatures, simply by adding it directly to the aqueous phase and stirring to dissolve. As a penetration enhancing component, it is usually used in combination with other auxiliaries and has good compounding synergy with nonionic, anionic, and cationic surfactants.
In practical operation, it is recommended to pre-disperse OE-35 with a small amount of warm water (or directly stir it into water) before adding it to the main working solution system. For continuous processes (e.g., textile continuous pretreatment), it can be added online via a metering pump; for batch processes (e.g., leather drum soaking), it can be added in one go at the initial stage. The product's low foam characteristic makes it suitable for high-speed mechanical stirring and circulating spray systems, as it does not generate excessive foam that interferes with operation.
It should be noted that Goli Chemical product database does not have specific recommended dosage data for various application fields. The dosage ranges in the following "Application Suggestions" are general chemical knowledge reference values based on the product's physicochemical properties (CMC value 0.01~0.1, active ingredient ≥99%). Users should determine the optimal dosage through small-scale tests based on their own formulation systems, substrate characteristics, and process conditions.
| Parameter Item | Technical Indicator | Description |
|---|---|---|
| Ionic Type | Nonionic | Broad compatibility, unaffected by water hardness |
| Appearance | Colorless to slightly yellow | Liquid, easy to flow |
| Active Content | ≥99% | High concentration active substance |
| HLB Value | 13.5 | Strong hydrophilicity, suitable for water-based systems |
| pH of 1% Aqueous Solution | 5.0~7.0 | Near neutral, mild and does not damage substrates |
| Cloud Point | >100℃ | Good high temperature stability |
| Penetrating Power | ≤10 seconds | Ultra-fast penetration, instant wetting |
| Critical Micelle Concentration (CMC) | 0.01~0.1 | Efficient surface activity achieved at low concentration |
| Surface Tension (25℃, 1% Aqueous Solution) | Approx. 30 mN/m | Significantly reduces water surface tension |
| Foam Characteristics | Low foam | Suitable for spray and circulating systems |
| Alkali Resistance Stability | Good | Remains stable under different pH conditions |
Textile Dyeing and Finishing Pretreatment (Desizing/Scouring/Bleaching): Add as a penetrant directly to the pretreatment bath. Recommended starting dosage is 0.1%~0.3% of the working solution. When used with alkali and hydrogen peroxide, it can significantly improve capillary effect and whiteness. The specific dosage should be adjusted through trials based on the type of fabric (cotton, linen, blended) and process conditions (temperature, time, liquor ratio).
Leather Chemicals (Soaking/Degreasing): Recommended dosage is 0.3%~0.5% based on the weight of leather. In the soaking process, it helps water quickly penetrate into the leather fibers, shortening rewetting time; in the degreasing process, it works with surfactants to effectively emulsify natural leather fats.
Metal Surface Cleaning Agent Formulation: Recommended dosage is 0.2%~0.5% of the total formulation weight. Use with alkaline agents or acid cleaning solutions. It can be used as a single penetration component or compounded with other nonionic surfactants.
Pesticide Synergistic Adjuvant: Recommended addition amount is 0.1%~0.3% of the total formulation. It can significantly reduce the surface tension of the spray liquid and improve spreading and wetting ability on hydrophobic leaf surfaces. The specific dosage should be validated based on different pesticide active ingredients and target crops.
Household Detergents and Industrial Cleaning: In laundry liquids or hard surface cleaners, a recommended dosage of 0.1%~0.3% can shorten soaking time and enhance penetration and stripping effect on heavy oil stains.
The above dosage ranges are derived from the product's CMC value (0.01~0.1) and penetrating power (≤10 seconds) and other technical data as general chemical knowledge reference values. Users must conduct small-scale tests before mass production to determine the optimal addition ratio suitable for specific formulations and processes.