Description
Specifications Table
Product Name – Propylene Glycol
Quantity/Pack Size – 100 ml
Form – Liquid
Grade – USP
Application – Solvent, humectant, stabilizer in lab formulations
Product Overview
Propylene glycol is a colorless, odorless, and viscous liquid widely recognized for its versatility in laboratory settings. This USP-grade variant ensures high purity, making it suitable for applications demanding consistent performance and minimal impurities. As a hygroscopic compound, it effectively retains moisture, which is critical in formulations where stability is paramount. Its low toxicity profile further enhances its suitability for sensitive applications where safety is a priority. The solvent properties of propylene glycol allow it to dissolve a broad range of substances, including polar and non-polar compounds, making it indispensable in experimental setups. Its chemical stability under varying conditions ensures reliable results across different protocols. Whether used as a standalone solvent or as part of a complex mixture, this grade maintains integrity, reducing the risk of contamination or degradation. The 100 ml packaging provides a practical volume for small-scale experiments while ensuring ease of handling and storage. Compatible with most lab glassware and equipment, it integrates seamlessly into existing workflows without requiring additional adjustments. The absence of volatile organic compounds (VOCs) in its composition aligns with modern lab safety standards, minimizing exposure risks during prolonged use.
FAQs
1. What is the shelf life of propylene glycol in unopened packaging?
When stored in its original, tightly sealed container at room temperature, propylene glycol retains its stability for up to 24 months from the date of manufacture. Exposure to extreme temperatures or direct sunlight may accelerate degradation, so it is advisable to keep it in a controlled environment away from heat sources.
2. Can this grade of propylene glycol be used in food-related experiments?
The USP grade indicates that this propylene glycol meets pharmaceutical standards, which often overlap with food-grade requirements. However, if the application involves direct contact with consumables, it is recommended to verify compliance with local food safety regulations, as additional certifications may be necessary depending on the jurisdiction.
3. Is propylene glycol compatible with plastic labware?
Propylene glycol is generally compatible with most common lab plastics, including polypropylene and polyethylene. However, prolonged contact with certain polymers, such as polystyrene, may cause swelling or leaching. For critical applications, it is best to conduct a compatibility test with the specific plastic material prior to full-scale use.
4. How does propylene glycol compare to ethylene glycol in lab applications?
While both are glycols, propylene glycol is significantly less toxic than ethylene glycol, making it safer for applications where human exposure is a concern. Ethylene glycol, though effective in low-temperature applications, poses higher health risks and is typically restricted to industrial uses. Propylene glycol also exhibits better solvency for a wider range of compounds, which can be advantageous in formulation work.
5. What precautions should be taken when handling propylene glycol?
Although propylene glycol is low in toxicity, standard lab safety practices should still be followed. Wear nitrile gloves and safety goggles to prevent skin or eye contact, especially when handling large quantities. Ensure adequate ventilation in the workspace to avoid inhalation of vapors, particularly in warm environments where evaporation rates may increase. In case of accidental ingestion or excessive exposure, refer to the material safety data sheet (MSDS) for appropriate first-aid measures.
