The rapid penetrant Fast T-50H (dioctyl sodium sulfosuccinate) belongs to anionic surfactants. According to GHS hazard classification, this product is categorized as skin corrosion/irritation Category 2 (H315: Causes skin irritation), serious eye damage/eye irritation Category 2 (H319: Causes serious eye irritation), and is harmful to aquatic life (H402).
In terms of physical hazards, this product is a non-flammable liquid with a flash point > 100 °C (closed cup) and no explosive properties. However, it should be noted that acute toxicity data show an oral LD₅₀ in rats of > 2000 mg/kg, which may cause gastrointestinal discomfort if swallowed; the 96h LC₅₀ for fish is approximately 10–100 mg/L, which is toxic to aquatic life. It is strictly prohibited to discharge the product or its solution directly into water environments.
When handling the rapid penetrant Fast T-50H, strictly follow the following guidelines:
| Type of Contact | Treatment Method |
|---|---|
| Skin contact | Immediately remove contaminated clothing and flush thoroughly with plenty of running water and soap for at least 15 minutes. If irritation symptoms occur, seek medical attention immediately. |
| Eye contact | Immediately lift eyelids and flush continuously with running water or saline solution for at least 15 minutes, and seek medical attention immediately. |
| Inhalation | Move the person to fresh air and keep the airway clear. If feeling unwell or having difficulty breathing, seek medical attention immediately. |
| Ingestion | Rinse mouth with water or mild saline. Do NOT induce vomiting (unless instructed by medical personnel). Seek medical attention immediately and show the container or label. |
Although this product is a non-flammable liquid, it may release irritating vapors when heated. Suitable extinguishing media: water spray, alcohol-resistant foam, dry powder, or carbon dioxide. Firefighters must wear positive-pressure self-contained breathing apparatus and full protective clothing. Prevent fire-fighting water from directly entering sewers or water bodies; collect and treat before discharge.
Immediately evacuate unrelated personnel to a safe area and eliminate all ignition sources. For small spills, absorb with sand, vermiculite, or other inert absorbent material, collect in a sealed container and dispose of as hazardous waste; for large spills, construct dikes or pits to contain, transfer to a dedicated container using an explosion-proof pump for recovery or disposal. The spill area should be well ventilated. When rinsing residues, avoid contaminating groundwater.
Since this product is not resistant to strong acid or alkali environments, it should be used under neutral and mild acid-base conditions to ensure optimal performance and reduce the risk of unexpected reactions. Waste liquid treatment must strictly comply with local environmental regulations and must not be discharged arbitrarily.