Polypropylene Glycol PPG-200 (CAS No.: 25322-69-4) is a non-ionic high molecular polymer, appearing as a colorless to slightly yellow transparent viscous liquid. Its acute toxicity is low, with an oral LD50 (rat) greater than 2000 mg/kg, and a closed cup flash point above 150°C. It is not classified as a hazardous material during routine transport and storage. However, according to GHS classification, this product may cause mild eye irritation (H319), and prolonged or repeated skin contact may lead to defatting and dryness. Therefore, necessary protective measures should still be taken during operation.
PPG-200 has broad chemical compatibility, with high resistance to acids, alkalis, and hard water environments, and is not prone to hydrolysis or precipitation. However, as a polyether product, it has certain hygroscopicity. Moisture prevention should be noted during storage and use to avoid affecting the final application effect due to water absorption. At the same time, this product should be kept away from strong oxidizing agents and avoid long-term storage under extreme temperature conditions.
In practical applications, PPG-200 is widely used as a polyurethane flexible foam polyol initiator, synthetic lubricant base oil, mold release agent, defoamer, and cosmetic intermediate, etc. Different application scenarios have different requirements for product purity, moisture content, and use conditions. It is recommended that users conduct small-scale tests according to specific processes before large-scale use.
| Protection Type | Specific Requirements |
|---|---|
| Eye Protection | Wear chemical safety goggles to avoid product splashing into eyes |
| Hand Protection | Wear chemical-resistant gloves (e.g., nitrile gloves) to avoid direct skin contact |
| Ventilation Requirements | Use in a well-ventilated area; if necessary, use local exhaust ventilation |
| Hygiene Habits | Thoroughly wash hands and any exposed skin after operation; no eating or smoking in the workplace |
| Personnel Training | Operators should receive training on chemical safety operation procedures |
| Item | Requirement |
|---|---|
| Storage Temperature | Recommended 5–35°C, in a cool, dry, well-ventilated warehouse |
| Container Requirements | Keep containers tightly sealed to prevent moisture absorption |
| Substances to Avoid | Keep away from ignition sources, heat sources, strong oxidizers, strong acids, and strong bases |
| Segregation Storage | Store separately from food and feed |
| Storage Period | It is recommended not to exceed 24 months from the production date; use after retesting if beyond this period and still qualified |
| Contact Type | Treatment Measures |
|---|---|
| Skin Contact | Immediately remove contaminated clothing, rinse thoroughly with plenty of water and soap; if irritation symptoms occur, seek medical attention |
| Eye Contact | Immediately rinse with plenty of water or saline for at least 15 minutes, lift eyelids to ensure thorough cleaning; if irritation persists, seek immediate medical attention |
| Inhalation Discomfort | Move the patient to fresh air and keep airway unobstructed; if unwell, seek medical attention |
| Ingestion | Rinse mouth with water, do not induce vomiting; seek medical attention immediately and present the product safety data sheet or label |
| Spill Handling | Small spills: absorb with inert absorbent material (e.g., sand, vermiculite), collect in a sealed container; large spills: contain the source, prevent entry into drains or water bodies, transfer to a spare container using a pump; after cleanup, wash the contaminated area with water |
| Firefighting Measures | Suitable extinguishing agents: water spray, alcohol-resistant foam, dry powder, carbon dioxide; firefighters must wear self-contained positive-pressure breathing apparatus and full protective clothing; combustion products: carbon monoxide, carbon dioxide, and incompletely burned hydrocarbons |
For different application scenarios of PPG-200, the following points should be noted: