XPO-4 (glycerol polyoxyethylene ether oleate) is a chemical auxiliary with relatively high safety. Its acute oral toxicity LD₅₀ is greater than 5000 mg/kg (rat), indicating low acute toxicity; its flash point is above 150°C, making it non-flammable and non-explosive. However, according to GHS classification standards, this product is classified as Serious eye damage/eye irritation Category 2 (H319), meaning it causes severe eye irritation upon contact, which is the most notable risk point in daily operations.
In terms of ecological safety, XPO-4 is classified as Acute aquatic toxicity Category 3 (H402), harmful to aquatic life. Therefore, it is strictly prohibited to discharge untreated waste liquid directly into water bodies or public drainage systems. It is worth noting that the biodegradability of this product exceeds 70% (OECD 301B method), classifying it as readily biodegradable with relatively low persistence in the environment.
From a physicochemical hazard perspective, XPO-4 has no explosiveness, no oxidizing properties, and a high flash point (>150°C), making it a non-flammable liquid with low fire risk during storage and transportation. However, this does not mean basic safety management can be neglected. It should still be stored separately from incompatible substances such as strong oxidizers, strong acids, and strong bases, and the container should be kept sealed.
| Safety Indicator | Parameter/Classification | Description |
|---|---|---|
| GHS Eye Irritation Classification | Category 2 (H319) | Causes serious eye irritation |
| GHS Aquatic Toxicity Classification | Category 3 (H402) | Harmful to aquatic life |
| Acute Oral Toxicity LD₅₀ | > 5000 mg/kg (rat) | Low acute toxicity |
| Flash Point | > 150 °C | Non-flammable liquid |
| Explosiveness | None | — |
| Oxidizing Properties | None | — |
| Biodegradability | > 70% (OECD 301B) | Readily biodegradable |
| Acute Fish Toxicity EC₅₀ | > 100 mg/L | — |
| Skin Irritation | Based on evaluation of similar structural substances, no significant irritation shown | Washing after operation is still recommended |
Eye protection is of utmost importance. During operation, standard safety goggles or face shields must be worn at all times. This is the most critical measure to prevent H319 risk. For hands, it is recommended to wear chemical-resistant protective gloves (such as nitrile rubber or neoprene gloves), and appropriate protective clothing according to the working conditions should be worn on the body. In cases of insufficient ventilation or possible aerosol generation, suitable respiratory protection should also be worn.
Operating environment and habits: Operations should be carried out in well-ventilated areas, avoiding prolonged inhalation of vapors or mists. Eating, drinking, or smoking is prohibited in the operation area. After use, thoroughly wash hands and exposed skin. Based on evaluation of similar structural substances, this product has not shown significant skin irritation, but good washing habits are still recommended.
Special reminders for dyeing process applications: When using XPO-4 in high-temperature and high-pressure polyester dyeing processes, since the dye bath is in a sealed high-temperature and high-pressure state, operators should pay special attention to the escape of steam when opening the vessel, avoid directly facing the vessel opening, and prevent contact of steam droplets with eyes and face.