Tristyrylphenol ethoxylate 600# series (CAS No.: 99734-09-5), as a nonionic surfactant, may encounter common problems during use related to changes in storage conditions, formulation compatibility, or process parameters. The product itself is chemically stable, resistant to acid, alkali, and hard water, and is not easily degraded under normal conditions. When a problem arises, it is recommended that users first conduct a systematic investigation based on the observed phenomenon to confirm whether it is caused by physical state changes, deviations in operating procedures, or formulation compatibility issues.
Haian Guoli Chemical Co., Ltd. provides full technical support for all its products. You can obtain professional guidance through the official contact information marked on the product packaging, the online customer service on the company's official website, or by directly calling the technical department. When submitting a problem, please prepare the product batch number, purchase date, a description of the problem (photos or videos are better), and your formulation overview, so that the technical engineer can quickly locate the problem and provide targeted solutions.
This product is a low-foaming nonionic surfactant (HLB value approximately 11.5, cloud point 50~60°C, pH 5.0~7.0 for a 1% aqueous solution). Its waxy solid state may cause increased viscosity or solidification at low temperatures. This is a normal physical change that does not affect the intrinsic quality of the product. Before use, allow it to slowly return to room temperature and stir evenly to restore fluidity.
| Problem Phenomenon | Possible Cause | Solution |
|---|---|---|
| Product becomes thick, solidifies, or precipitates | Storage temperature below recommended range (5-35°C); low temperature causes increased viscosity | Place the product in an environment at 20-35°C to slowly warm up, stir thoroughly before use; quality is not affected |
| Poor emulsification, layering, or precipitation | HLB value does not match the oil phase system; insufficient dosage; improper feeding sequence or mixing method | Verify if the HLB value matches (this product HLB≈11.5); adjust the ratio of 600-2 and 600-1 for synergistic effects; optimize feeding sequence and homogenization process |
| Cloudy aqueous solution or gel formation | Use temperature exceeds cloud point (50-60°C); poor compatibility with anionic auxiliaries; ion interference | Appropriately reduce preparation temperature; fully dissolve this product before adding ionic components; check water hardness and electrolyte concentration |
| Product color darkens | Prolonged storage at high temperature; contact with metal ions; beyond shelf life | Check storage environment temperature; confirm container lining is intact; verify product batch number and production date |
| Skin or eye irritation | Direct contact without wearing protective equipment during operation | Immediately follow SDS emergency treatment: rinse skin with plenty of water for at least 15 minutes; seek medical attention immediately for eye contact; wear nitrile gloves and safety goggles for subsequent operations |
| Parameter Item | Value | Description |
|---|---|---|
| HLB Value | Approximately 11.5 | Hydrophilic-lipophilic balance value, guiding emulsifier selection |
| Cloud Point (1% aqueous solution) | 50~60°C | Above this temperature, nonionic surfactants precipitate and the solution becomes cloudy |
| pH (1% aqueous solution) | 5.0~7.0 | Neutral range, compatible with most systems |
| Active Content | ≥99% | High purity, free alcohol ≤3% |
| Surface Tension (1%, 25°C) | Approximately 32 mN/m | Measures wetting and spreading ability |
| Penetration Power (standard canvas method) | ＞300 s | Reference index for wetting and penetration performance |
| Appearance | Light yellow to brownish yellow liquid | Store tightly sealed, avoid prolonged high temperature |
| Storage Temperature | 5~35°C | Avoid repeated freezing and thawing |
| Flash Point | ＞150°C | Not classified as a flammable liquid |
When troubleshooting, if you need to handle the product, be sure to wear nitrile rubber gloves and chemical safety goggles, and ensure the operation area is well-ventilated. Although this product has low toxicity, it is classified as causing skin irritation (H315) and eye irritation (H319). If contact occurs, strictly follow the emergency measures in the Safety Data Sheet (SDS). Do not discharge the problematic product directly into drains or water bodies; absorb spilled material with inert material and dispose of according to regulations.