How to use Isomeric Tridecanol Phosphate E-1306P?
The usage method of isomeric tridecanol phosphate E-1306P varies depending on the application field, generally following the principle of "pre-dissolve and dilute, add later, adjust pH". The specific dosage needs to be determined through experimental optimization based on the formulation.
Detailed Explanation
Isomeric Tridecanol Phosphate E-1306P (CAS: 9043-30-5) is a high-purity anionic phosphate surfactant produced by Guoli Chemical, with an active content of ≥95%, appearing as a light yellow transparent viscous liquid, readily soluble in water, and an HLB value of 7.0~9.0. This product combines excellent extreme pressure lubricity, penetrating wetting ability, and chemical stability, and is widely used in metalworking fluids, industrial cleaning, textiles, leather, pesticides, electroplating, and other fields. Since it is an acidic phosphate (pH of 1% aqueous solution: 5.0~7.0, pH of 5% aqueous solution: 2.0~4.0), neutralization treatment is necessary when used in alkaline systems.
Core principle of usage: First, pre-dilute E-1306P with an appropriate amount of water or solvent, then add it to the formulation system. If used in alkaline systems (such as alkaline cleaners, scouring agents), it is recommended to neutralize it with alkali (e.g., sodium hydroxide, potassium hydroxide, or alkanolamines) to the required pH before adding, to avoid drastic local pH changes that may destabilize the system. The product has high viscosity (kinematic viscosity 200~500 mPa·s), which increases further at low temperatures in winter; it is recommended to handle at 20~35°C, and the container can be warmed in a suitable environment if necessary.
E-1306P has low foam characteristics, making it suitable for processes where excessive foam is undesirable. However, it has excellent penetrating power (≤30 seconds), enabling rapid wetting of substrate surfaces. The product contains 50%~70% monoester and 25%~40% diester, with the monoester providing good emulsifying and dispersing properties, while the diester imparts excellent lubricity. This ester ratio gives it outstanding extreme pressure lubricating ability in metalworking fluids.
Technical Parameters
| Parameter Item | Value Range |
|---|
| Ionic Type | Anionic |
| Appearance | Light yellow transparent viscous liquid |
| Active Content | ≥95% |
| HLB Value | 7.0~9.0 |
| pH of 1% Aqueous Solution | 5.0~7.0 |
| pH of 5% Aqueous Solution | 2.0~4.0 |
| Density (25°C) | 1.05~1.10 g/cm³ |
| Kinematic Viscosity | 200~500 mPa·s |
| Surface Tension | 35~40 mN/m |
| Penetrating Power | ≤30 seconds |
| Free Phosphoric Acid | ≤0.5% |
| Monoester Content | 50%~70% |
| Diester Content | 25%~40% |
| Combined Phosphorus | 5.0%~8.0% |
| Foam Characteristics | Low foam |
| Alkali Resistance | Good |
| Flash Point | ＞100°C |
| Storage Temperature | 5°C~40°C |
| Packaging Specifications | 50kg plastic drum / 200kg plastic drum / IBC tote tank |
Application Recommendations
The following are recommended addition amounts for various application fields (all are general industry reference values; actual dosages must be determined through formulation experiments):
- Metalworking Fluids: Add 1%~5% in soluble oil formulations, 0.5%~3% in semi-synthetic cutting fluids, used as extreme pressure lubricant and corrosion inhibitor. When preparing, first dilute E-1306P with base oil or water, then mix with other components.
- Industrial Alkaline Cleaners: Recommended addition is 1%~5%. Neutralize with alkali (NaOH/KOH) to pH 7~9 before adding to the cleaner formulation. It can remain stable in high alkalinity systems and provide penetrating and emulsifying effects for oil removal.
- Textile Dyeing and Printing Pretreatment: As a scouring agent or penetrant, recommended dosage is 0.2%~1% (on the weight of treatment bath). Can be added directly to the scouring bath; it is recommended to neutralize beforehand when used with alkali agents.
- Leather Processing: Add 0.5%~2% in degreasing process, dosage in fatliquoring depends on formulation. Utilizes its emulsifying and dispersing ability to remove natural oils from hides, while also providing fatliquoring and filling effects.
- Pesticide Emulsifiers: Add 3%~8% in emulsifiable concentrate (EC) formulations, 1%~5% in emulsion in water (EW) formulations. Can be used in combination with other nonionic surfactants to optimize emulsion stability.
- Electroplating Baths: As a wetting and dispersing additive, addition amount is 0.01%~0.1% (on the weight of plating solution). Excessive use may affect coating quality; dosage must be strictly controlled.
Precautions
- The product is an acidic anionic phosphate ester. Wear impermeable gloves and chemical safety goggles during operation, avoiding skin and eye contact.
- It is recommended to conduct small-scale tests to verify the optimal dosage and compatibility before use, especially when used in alkaline systems, neutralization treatment is necessary to achieve optimal stability.
- If stratification or turbidity occurs at low temperatures, it is a normal physical phenomenon. Stir evenly at 20~35°C before use; product quality is not affected.
- Precipitation may occur when mixed with cationic surfactants; avoid direct mixing or conduct compatibility tests first.
- Do not discharge untreated waste liquid directly into water bodies; dispose of as hazardous waste in accordance with local regulations.
- Store in a cool, dry environment at 5°C~40°C, keep container tightly closed, and do not freeze.
