Thickener 6000DS (white to off-white powder), thickener 638 (slightly yellow transparent liquid), and PEG-150 distearate are all nonionic thickeners that are non-toxic and non-flammable, making them safe and reliable for humans and the environment under normal use conditions. However, caution should never be relaxed when handling any industrial chemical, especially powder products that can generate dust during feeding. If dust accumulates and mixes with air to a certain concentration, it may form a combustible dust cloud. Therefore, operators must strictly adhere to industrial hygiene standards, with proper source control and process protection.
For storage, all three products should be kept in a cool, dry, and well-ventilated environment, with a recommended storage temperature not exceeding 45°C and relative humidity below 70%, to avoid moisture absorption and caking caused by temperature fluctuations. For powder products (6000DS), any unused portion after opening must be resealed tightly. For liquid products (638), the original packaging container should be kept sealed, away from strong acids, strong bases, and strong oxidizers.
In case of accidental contact, immediate first aid measures should be taken: For eye contact, rinse continuously with running water for at least 15 minutes. For skin contact, wash thoroughly with water and soap. If dust is inhaled, move the person to fresh air immediately. If swallowed, do not induce vomiting; rinse the mouth with water, drink warm water, and observe closely. Although these products have low acute oral toxicity, seek medical attention if discomfort persists.
| Safety Item | Thickener 6000DS | Thickener 638 | PEG-150 |
|---|---|---|---|
| Product Form | White to off-white powder | Slightly yellow transparent liquid | Powder or flakes |
| Flammability | Non-flammable | Non-flammable | Non-flammable |
| Dust Explosion Risk | Yes (when fine dust accumulates) | None | Yes (when fine dust accumulates) |
| Acute Toxicity | Low | Low | Low |
| Recommended Storage Temperature | ≤45°C | ≤45°C | ≤45°C |
| Recommended Relative Humidity | ＜70% | ＜70% | ＜70% |
| Shelf Life (Unopened) | Two years | Two years | Two years |
Powder Products (Thickener 6000DS/PEG-150 Powder): It is recommended to use closed or semi-closed operations when adding materials, and to add slowly in an environment equipped with local exhaust ventilation to reduce dust. Pre-wetting with a small amount of water or liquid component from the formula before adding to the main kettle can reduce dust exposure and improve dispersion efficiency.
Liquid Product (Thickener 638): Since it can be directly dispersed without dissolution, it is especially suitable for cold blending processes. Avoid prolonged storage at high temperatures to prevent viscosity changes. After taking materials, seal the container promptly to prevent contamination.
Formulation Compatibility: All three products are nonionic and have good compatibility with anionic, cationic, and other nonionic systems. They are resistant to acids, alkalis, and hard water, maintaining thickening stability over a wide pH range. They perform particularly well in surfactant systems (e.g., shampoos, body washes).