G-18 Glycerol Polyoxyethylene Ether (INCI name: Glycereth-18, CAS number: 31694-55-0) is a non-ionic surfactant produced by Guoli Chemical. It appears as a colorless to light yellow transparent liquid with high hydrophilicity (HLB value of about 18), excellent emulsifying and solubilizing capabilities, and chemical stability. During actual use, problems can usually be divided into safety emergency types (such as skin\/eye contact, leakage) and process application types (such as formulation stratification, poor dispersion, abnormal foam, etc.). Different types of problems require different treatment paths. The following is a classified explanation of the response plans.
For safety emergency issues, strictly follow the product SDS (Safety Data Sheet): In case of eye contact, immediately rinse with plenty of water for at least 15 minutes and seek medical attention as soon as possible; in case of skin contact, remove contaminated clothing and wash thoroughly with plenty of soap and water; if inhaled and feeling unwell, move to fresh air; in case of leakage, adsorb with inert absorbent materials such as sand or vermiculite, collect in a sealed container, and dispose as hazardous waste. Do not discharge the product into water bodies or sewers.
For process application issues, common manifestations and investigation directions include: poor emulsification\/solubilization effect (check HLB value matching and dosage rationality, whether the oil phase is suitable), system turbidity or stratification (check if pH is within the stable range of 3~12, whether there is interference from strong oxidants or strong acids\/bases), excessive or insufficient foam (this product has rich foam with moderate stability, can be adjusted with defoamers or other surfactants as needed), reduced dispersion efficiency (confirm whether the addition order and stirring conditions are appropriate).
| Problem Manifestation | Possible Cause | Suggested Treatment |
|---|---|---|
| Formulation stratification\/demulsification | HLB value mismatch, insufficient dosage, pH outside 3~12 range | Check the required HLB value of the oil phase, optimize the dosage (usually 0.5%~5%), adjust the system pH value |
| Abnormal darkening of product color | Storage temperature too high (above 30°C) or prolonged exposure to strong acid\/base environment | Confirm storage temperature 5~30°C, seal and protect from light, check batch quality |
| Poor water solubility | Increased viscosity at low temperature leading to slow dispersion | This product is easily soluble in water; it is recommended to dissolve with stirring at 15~40°C to avoid freezing |
| Skin\/eye irritation | Direct contact without wearing protective equipment | Immediately rinse according to SDS first aid measures; future operations must wear protective gloves and goggles |
| Poor dispersion in coatings\/inks | Improper addition order or insufficient shear force | Add during the grinding stage to ensure adequate shear dispersion |
G-18 Glycerol Polyoxyethylene Ether is suitable for various fields including cosmetics, textiles, metalworking fluids, coatings and inks, industrial cleaning, and polyurethane foam. Key usage suggestions are as follows:
For further technical support and problem diagnosis, you can contact the technical team of Hai'an County Guoli Chemical Co., Ltd. through the following methods:
It is recommended to prepare the following information in advance when contacting technical support for quick problem identification: product batch number, usage dosage, formulation system overview (pH value, temperature, other components), specific description of the problem phenomenon, and photos. This will help the Guoli Chemical technical team provide you with accurate solutions more efficiently.