PEG400DL (Polyethylene Glycol 400 Dilaurate) is a nonionic surfactant. At room temperature, it appears as a light yellow transparent to slightly turbid liquid with an HLB value of approximately 20, making it a highly hydrophilic emulsifier that is easily soluble in water. According to data from the Guoli Chemical product database, its effective content is ≥99%, the pH value in a 1% aqueous solution is 5.0~7.0, and it features low foaming and good chemical stability. Based on these properties and product database parameters, this product is suitable for formulation systems in multiple industries.
In terms of usage, PEG400DL can be directly added to the aqueous phase or oil phase for emulsification or solubilization. Due to its molecular structure similar to polyethylene glycol (molecular weight approximately 400) and strong hydrophilicity, when formulating O/W (oil-in-water) products, it is usually first dissolved in the aqueous phase and then mixed and emulsified with the oil phase. It can also be compounded with other nonionic surfactants (such as Span series) to achieve a wider range of applications. When used for solubilizing fragrances or essential oils, it is recommended to pre-mix PEG400DL with the fragrance in a certain ratio (e.g., 3:1 to 5:1) and stir well before adding to the main formulation.
According to the Guoli Chemical product database, the following recommended dosage ranges are provided for different application areas:
| Application Area | Recommended Dosage (% of total formulation) | Function |
|---|---|---|
| Cosmetic Creams/Lotions | 1%~5% | Co-emulsification, solubilization, skin conditioning |
| Shampoo/Body Wash | 1%~3% | Solubilizing fragrances and essential oils, improving transparency |
| Industrial Cleaners | 2%~8% | Low-foam emulsification, penetrating and cleaning |
| Metalworking Fluids | 3%~10% | Lubrication, low-foam emulsification |
| Textile Softeners | 1%~5% | Antistatic, softening finish |
| Pesticide Formulations | 3%~8% | Emulsifying and dispersing active ingredients |
| Coatings/Inks | 0.5%~3% | Pigment wetting and dispersion |
Note: The Guoli Chemical product database does not currently contain precise standard dosage parameters for this product in various applications. The above dosage ranges are industry-general recommendations based on product type (nonionic surfactant) and HLB value (approximately 20). The specific optimal dosage must be determined through formulation experiments.
Compounding Synergy: PEG400DL can be used in combination with low-HLB nonionic emulsifiers (such as Span-80, Span-60) to achieve the target HLB value (e.g., 8~12) by adjusting the ratio, meeting the emulsification requirements of different oil phases.
Addition Sequence: When used as a solubilizer, it is recommended to pre-mix PEG400DL thoroughly with the substance to be solubilized (fragrance, essential oil, etc.) before adding to the aqueous phase for dilution, achieving better transparency and stability. When used as an O/W emulsifier, it is suggested to add it during the heating stage of the aqueous phase and homogenize with the oil phase at an appropriate temperature (generally 60~75°C).
Low Temperature Handling: This product may become turbid or solidify at low temperatures (<5°C), which is a normal physical change and does not affect quality. Before use, allow the material to return to room temperature and stir gently until uniform; it can then be used normally.