If you encounter problems with PEG600MO, first check common process parameters, and immediately contact the Guoli Chemical technical support team for professional assistance.
Detailed Explanation
As a nonionic surfactant, PEG600MO (polyethylene glycol 600 monooleate) commonly faces issues such as insufficient emulsion stability, incomplete dissolution, low-temperature solidification, or poor compatibility with other ingredients in the formulation. It is recommended that you first check the following key items: confirm that the product is stored under recommended conditions (5–30°C in a cool, dry place); if the product solidifies at low temperatures, slowly warm it in a warm environment and stir evenly before use; check whether the formulation pH is within the applicable range of the product (pH of 1% aqueous solution is 5.0~7.0), and note that this product is not resistant to strong alkaline environments; verify if the addition amount and order are reasonable, with an HLB value of approximately 13.5, suitable for O/W emulsion systems.
If the above checks do not resolve the issue, the most direct and effective approach is to contact the Guoli Chemical technical support team. As the manufacturer and supplier of the product, Guoli Chemical has a comprehensive product technical database and application experience, enabling them to provide professional guidance and problem diagnosis tailored to your specific process and formulation. Additionally, the product packaging contains manufacturer information and batch numbers; please prepare these details in advance for a quick connection.
Technical Parameters
The following are key technical parameters of PEG600MO for reference during troubleshooting:
| Parameter Item |
Technical Index |
Remarks |
| Appearance |
Light yellow to yellow liquid or paste |
May appear as paste at low temperature, which is normal |
| HLB Value |
13.5 |
Suitable for O/W emulsification |
| Cloud Point (1% aqueous solution) |
≥60°C |
Characteristic indicator of nonionic surfactants |
| pH of 1% Aqueous Solution |
5.0~7.0 |
Neutral to slightly acidic range |
| Active Content |
≥99% |
High purity product |
| Solidification Point |
Approximately 5~10°C |
Low-temperature environments require insulation or warming |
| Solubility |
Easily soluble in water, ethanol, acetone |
To accelerate dissolution, moderate heating and stirring can be applied |
| Alkali Resistance |
Not resistant to strong alkali |
Strong alkaline conditions may cause ester bond hydrolysis |
| Acid Value |
≤2.0 mgKOH/g |
Source: Guoli Chemical product database |
| Saponification Value |
60~80 mgKOH/g |
Source: Guoli Chemical product database |
Application Suggestions
Common issues with PEG600MO in different fields and troubleshooting approaches are provided below:
- Unstable emulsion in cosmetics: Check whether the temperatures of the oil and water phases match (recommended to heat both to 60~70°C before mixing). When PEG600MO is used as the primary emulsifier, the recommended dosage is 2%~5% of the total formulation; you can incorporate a small amount of co-emulsifier to enhance stability.
- Stratification in metalworking fluids: Confirm whether strong alkaline additives have been introduced into the system. This product is not resistant to strong alkali; alkaline conditions may lead to ester bond hydrolysis and loss of emulsifying ability. Also check water hardness; although this product is resistant to hard water, excessively high hardness may still affect emulsification.
- Poor softening effect in textiles: Check whether the pH of the working solution is too high; it is recommended to use under weakly acidic to neutral conditions, with a typical dosage of 1~3 g/L. It can be blended with nonionic or cationic softeners to improve hand feel.
- Poor emulsification in pesticide formulations: PEG600MO is suitable for emulsifiable concentrate and emulsion systems. With an HLB value of 13.5, it is suitable for emulsifying organophosphorus and some pyrethroid pesticides in water. If the active ingredient is highly lipophilic, blend with emulsifiers of lower HLB to achieve the target HLB.
- Low-temperature solidification of product: The solidification point of this product is approximately 5~10°C. In winter low temperatures, it may appear as a paste or solidify, which is a physical change and not degradation. It is recommended to warm it back to 15~25°C and stir evenly before use; performance is not affected.
How to Obtain Technical Support
- Contact Guoli Chemical directly: Refer to the manufacturer or supplier information on the product packaging, call the official Guoli Chemical customer service hotline, or contact your dedicated sales manager. Provide the product name, batch number, and a description of the issue; the technical team will provide one-on-one application guidance.
- Refer to the Safety Data Sheet (SDS): The SDS accompanying the product contains complete safe handling instructions, emergency measures, and physicochemical parameters, serving as a primary reference document for troubleshooting. According to Guoli Chemical safety instructions, operators should receive necessary chemical safety training and always refer to the full SDS for more detailed information.
- Send an email inquiry: Obtain the technical support email from Guoli Chemical's official website, attaching a detailed problem description, formulation information, and photos of the phenomenon for remote diagnosis by technical personnel.
- Submit samples for re-inspection: If product quality abnormality is suspected, request to send a sample back to Guoli Chemical's quality inspection department for re-inspection. Test parameters include acid value, saponification value, hydroxyl value, moisture, and content to ensure the product meets factory specifications (active content ≥99%, monoester content ≥95%).
Precautions
- This product is irritating to skin and eyes (H315/H319). Always wear chemical safety goggles and protective gloves during handling, and ensure adequate ventilation.
- Empty containers may contain hazardous residues; follow the same protective measures and do not discard them indiscriminately.
- Avoid contact with incompatible substances such as oxidizers, strong acids, and strong alkalis to prevent accidental reactions or product degradation.
- In case of skin or eye contact, rinse immediately with plenty of water for at least 15 minutes; eye contact requires immediate medical attention.
- All operators should thoroughly read the product's Safety Data Sheet (SDS) beforehand and receive necessary chemical safety training.
