Quick Penetrant Fast T-50H (dioctyl sulfosuccinate sodium salt, DOSS) belongs to anionic surfactants. According to the GHS hazard classification, it has clear irritating hazards to human health. This product is classified as Skin Corrosion/Irritation Category 2 (H315: Causes skin irritation) and Serious Eye Damage/Eye Irritation Category 2 (H319: Causes serious eye irritation). Direct skin contact can cause redness, swelling, and pain; splashing into the eyes can cause severe irritation. It is harmful if swallowed and may cause gastrointestinal discomfort.
In terms of acute toxicity, the oral LD₅₀ in rats is greater than 2000 mg/kg, indicating low acute toxicity, but this does not mean its health risks can be ignored. The product is non-flammable and non-explosive, with a flash point greater than 100°C (closed cup) and low physical hazards. The main risks are concentrated on direct contact and accidental ingestion. Skin and eye protection during operation are the core safety measures.
Environmentally, Fast T-50H has clear toxicity to aquatic life, classified under GHS as Acute Aquatic Hazard Category 3 (H402: Harmful to aquatic life). The 96-hour LC₅₀ for fish is approximately 10–100 mg/L, indicating that even at low concentrations, it may be harmful to fish and other aquatic organisms. Therefore, the waste liquid of this product must not be directly discharged into sewers, rivers, lakes, or other water bodies without treatment, and must be collected and disposed of according to local environmental regulations.
| Safety Indicator | Parameter |
|---|---|
| GHS Skin Corrosion/Irritation Classification | Category 2 (H315: Causes skin irritation) |
| GHS Eye Damage/Irritation Classification | Category 2 (H319: Causes serious eye irritation) |
| Acute Aquatic Hazard Classification | Category 3 (H402: Harmful to aquatic life) |
| Rat Oral LD₅₀ | >2000 mg/kg |
| Fish 96h LC₅₀ | Approximately 10–100 mg/L |
| Flash Point (Closed Cup) | >100°C |
| Flammability | Non-flammable liquid |
| Explosiveness | Non-explosive |
Fast T-50H is widely used in textile printing and dyeing, pesticide formulations, leather processing, and industrial cleaning, but operational risks must be strictly controlled during use. It is recommended that enterprises take the following measures when using this product:
This product is not resistant to strong acids or strong alkalis and performs best under neutral to mild pH conditions. It is recommended to store in a cool, dry, well-ventilated warehouse, keep containers sealed, store separately from incompatible substances such as strong oxidizers and acids, and keep away from heat and ignition sources. Although the product is non-flammable, it may release irritating vapors when heated; firefighters should still wear positive-pressure self-contained breathing apparatus and full protective clothing when extinguishing fires. In case of a leak, collect the material using sand or inert absorbent, dispose of it as hazardous waste, and avoid contamination of groundwater when rinsing residues.