Stearyl Alcohol Polyoxyethylene Ether SG-6 (PEG-6 Stearate) is a white to slightly yellow waxy solid or flake at room temperature (melting point 32–36°C, sourced from Guoli Chemical Database), so it usually needs to be preheated and melted before use to facilitate accurate measurement and uniform dispersion. It is recommended to heat the material to 40–50°C to make it a flowable liquid before mixing with other oil-phase components. For aqueous systems, add the molten SG-6 slowly to hot water (water temperature recommended at 50–60°C) under moderate stirring until a uniform emulsion or dispersion is formed.
Since SG-6 is a nonionic surfactant, it can be compounded with anionic, cationic, and amphoteric surfactants. Its HLB value is approximately 9.7, and its cloud point is low (28–32°C, sourced from Guoli Chemical Database); therefore, attention should be paid to its potential precipitation from water when used in high-temperature systems. In applications such as cosmetic creams, textile softeners, and pesticide emulsifiers, it is usually first heated and uniformly mixed with the oil phase, followed by homogenization emulsification with the water phase to achieve optimal emulsification effect and system stability.
For different application scenarios, the usage method of SG-6 varies slightly. In textile finishing , it can be directly diluted to the required concentration of working solution and applied to fabrics by padding or dipping; in metalworking fluids , it is first mixed with base oil and rust inhibitors, then diluted with water to form an emulsion for use; in paper deinking processes, it is added directly to the pulper as a component of the deinking formulation. During operation, it is recommended to maintain good ventilation, wear dust masks and protective gloves, and avoid dust inhalation and eye contact (mild reversible irritation to eyes, sourced from Guoli Chemical Database).
| Parameter | Value | Description |
|---|---|---|
| Appearance | White to slightly yellow waxy solid/flake | Needs to be heated and melted before use |
| Melting Point | 32–36°C | Melting facilitates measurement and dispersion |
| HLB Value | Approximately 9.7 | Hydrophilic-lipophilic balance value determining emulsification suitability |
| Active Content | ≥99% | High concentration of active ingredient |
| pH of 1% Aqueous Solution | 5.0–7.0 | Nearly neutral, friendly to formulation systems |
| Cloud Point | 28–32°C (1% aqueous solution) | May precipitate from aqueous phase above this temperature |
| Monoester Content | ≥95% | High purity, stable performance |
| Solubility | Poorly soluble in water, easily soluble in ethanol, acetone, and oils | Better dispersion after dissolving in oil phase or organic solvent first |
Note: The above parameters are sourced from the Guoli Chemical official database.
Since the Guoli Chemical database does not contain precise dosage data for specific fields, the typical dosage recommendations below are based on general industry experience and product characteristics (HLB≈9.7, nonionic, excellent emulsifying and dispersing properties) and serve as reference ranges; specific dosages need to be verified by experimentation:
The above dosage ranges are for reference only; actual usage amounts should be optimized through orthogonal experiments or gradient experiments based on raw material characteristics, formulation system, and process conditions. For precise dosage recommendations for specific systems, please contact Guoli Chemical technical support for guidance.