Dodecylamine Polyoxyethylene Ether AC-1205 achieves a golden balance between wettability, emulsifying power, and chemical compatibility thanks to its precise 5EO chain length, balanced HLB value, and unique dual ionic characteristics, making it a highly competitive multifunctional nonionic surfactant.
Detailed Description
The core advantage of Dodecylamine Polyoxyethylene Ether AC-1205 (CAS: 26635-75-6) lies in its "precision structure" formed by the addition of 5 moles of ethylene oxide (EO). This structure endows the product with the most balanced performance within its series. Compared to similar products with shorter EO chains (e.g., AC-1202), AC-1205 significantly improves water solubility and emulsifying ability; while compared to products with longer EO chains (e.g., AC-1215), it retains stronger wetting and penetrating power and faster interfacial migration speed. This balance makes AC-1205 particularly outstanding in application scenarios requiring both "rapid spreading" and "stable emulsification."
Another key advantage is its excellent pH responsiveness. Under normal conditions, AC-1205 behaves as a standard nonionic surfactant with excellent formulation compatibility. However, in acidic media, the tertiary amine group in its molecular structure rapidly protonates, exhibiting cationic characteristics. This "smart conversion" capability, which ordinary nonionic or anionic surfactants do not possess, allows AC-1205 to adsorb on metal surfaces to form a protective film, playing a unique role in oilfield acidizing corrosion inhibitor synergism and rust prevention/lubrication in metalworking fluids. Additionally, its high purity of over 97%, extremely low free alcohol content, and excellent chemical tolerance ensure the long-term stability of formulations under extreme conditions, reducing the risk of side reactions.
Technical Parameters
| Performance Indicator | Dodecylamine Polyoxyethylene Ether AC-1205 | Similar Product AC-1202 (Short Chain) | Similar Product AC-1215 (Long Chain) |
|---|
| EO Addition Number | 5 | 2 | 15 |
| HLB Value | Approx. 10.8 | Approx. 6~8 (Low, strong lipophilicity) | Approx. 14~15 (High, strong hydrophilicity) |
| Ionic Characteristic | Nonionic (cationic under acidic conditions) | Nonionic | Nonionic |
| pH of 1% Aqueous Solution | 6.0~8.0 | N/A | N/A |
| Surface Tension (cmc, 25℃) | Approx. 29 mN/m | N/A | N/A |
| Critical Micelle Concentration (25℃) | Approx. 0.1 mmol/L | N/A | N/A |
| Cloud Point | ≥60℃ | N/A | N/A |
| Appearance (25℃) | Colorless to light yellow transparent liquid | Colorless to slightly yellow transparent liquid | Colorless to light yellow transparent liquid |
| Penetrating Power | Excellent | Good | Fair |
| Foaming Characteristic | Low foam | Low foam | Medium foam |
| Active Matter Content | ≥99% | N/A | N/A |
Application Recommendations
Due to its unique advantages, AC-1205 is an ideal choice for the following industrial formulations:
- Agrochemical Synergists and Emulsifiers: In dispersible oil suspensions and tank-mix adjuvants, its excellent wetting and spreading properties help the spray liquid to rapidly spread and cover leaf surfaces, while its efficient emulsifying power ensures uniform dispersion of oil-based active ingredients in water, effectively improving efficacy and utilization.
- Textile High-Temperature Leveling Agents: In high-temperature and high-pressure dyeing of synthetic fibers such as polyester, AC-1205, with its high cloud point (≥60℃) and low foaminess, maintains stable dispersing performance at high temperatures, effectively migrating dyes and preventing color spots. Moreover, its cationic characteristics provide certain fiber affinity, reducing dye waste.
- Metalworking and Industrial Cleaning: In cutting fluids, AC-1205 not only provides lubrication and dispersion functions but also forms an adsorption film on metal surfaces under acidic conditions, offering auxiliary rust prevention. In heavy-duty degreasers, its strong penetrating power quickly penetrates and emulsifies heavy oils, while maintaining low foam for easy high-pressure spray cleaning.
- Oilfield Chemicals: In crude oil demulsification and acidizing corrosion inhibitor formulations, AC-1205 serves as an efficient interfacial active component and corrosion inhibitor synergist, benefiting from its balanced HLB value and responsiveness to acidic environments.
Precautions
- Personal Protection: According to GHS classification, this product causes skin and serious eye irritation (H315, H319). Safety goggles and protective gloves must be worn during handling, and the operating area should be well ventilated.
- Storage Conditions: Store sealed in a cool, dry place, with ambient temperature recommended between +5°C and +35°C. Avoid prolonged contact with strong acids or bases to maintain optimal product activity.
- Formulation Application: As an emulsifier with certain lipophilicity, it can be used in combination with other high-HLB emulsifiers in formulation design to achieve optimal emulsification stability. It is recommended to fully utilize its cationic characteristics in acidic formulations for specific functions.
