In the realm of industrial chemicals, few compounds offer the versatility and safety profile of Propylene Glycol (PG), scientifically known as 1,2-propanediol with the CAS number 57-55-6. As a premier manufacturer and supplier based in China, we recognize the critical role PG plays across a multitude of sectors, from automotive and industrial to pharmaceutical and cosmetic applications. Understanding its properties and applications is key for any B2B procurement manager or R&D scientist looking for reliable chemical raw materials.

Propylene Glycol is a clear, viscous liquid characterized by its odorless nature and slightly sweet taste. Chemically, it's an aliphatic diol, meaning it possesses two hydroxyl groups. This molecular structure grants it unique properties, including excellent solvency and hygroscopic (water-attracting) capabilities. These characteristics are fundamental to its widespread use.

The Power of PG as an Antifreeze and Coolant

One of the primary applications for Propylene Glycol is as an antifreeze and coolant. Unlike its counterpart, ethylene glycol, PG exhibits significantly lower toxicity, making it the preferred choice for applications where accidental contact with food, humans, or the environment is a concern. This makes it an ideal component in:

  • Automotive Coolant Systems: It effectively lowers the freezing point of water, preventing engine blocks from cracking in cold weather, while its corrosion inhibitors protect vital engine components. For businesses seeking to buy antifreeze in bulk, our Propylene Glycol is a superior choice for cost-effective and safe solutions.
  • Industrial Heat Transfer Fluids: In HVAC systems, solar panels, and various industrial processes, PG-based fluids provide reliable freeze protection and efficient heat transfer without the risks associated with more toxic glycols. We are a trusted supplier of industrial heat transfer fluids, ensuring consistent product quality.
  • De-icing and Anti-icing Agents: Its ability to depress the freezing point of water also makes it effective in de-icing aircraft and runways, ensuring operational safety in extreme conditions.

Beyond Antifreeze: PG as a Premier Solvent and Humectant

The utility of Propylene Glycol extends far beyond its anti-freezing capabilities. Its exceptional solvent properties allow it to dissolve a wide array of organic compounds, essential for many formulations. As a technical grade propylene glycol manufacturer, we emphasize its role as:

  • A Pharmaceutical and Cosmetic Solvent: In the pharmaceutical industry, PG is used as a solvent and carrier for active pharmaceutical ingredients (APIs) in oral, injectable, and topical medications. Similarly, in cosmetics and personal care products, it acts as a humectant, drawing moisture to the skin, and as a solvent for fragrances and active ingredients. Its GRAS (Generally Recognized As Safe) status by regulatory bodies further solidifies its position. For those looking to purchase propylene glycol for these sensitive applications, purity and consistency are paramount.
  • A Food Additive: Recognized as safe for food use, PG functions as a humectant to maintain moisture in products like baked goods and confectionery, a solvent for flavors and colors, and even as an emulsifier. If you are sourcing food-grade PG, partnering with a reputable manufacturer in China is crucial for quality assurance.
  • A Component in Industrial Processes: PG also finds use in paints, coatings, and as a processing aid in plastics manufacturing.

Why Choose Us as Your Propylene Glycol Supplier?

At NINGBO INNO PHARMCHEM CO.,LTD., we are committed to providing B2B clients with high-quality Propylene Glycol that meets stringent industry standards. As a leading wholesale coolant supplier and a prominent chemical raw material distributor, we offer competitive prices for propylene glycol and ensure timely delivery from our production facilities in China. Our dedication to quality control means you receive a product that consistently performs, whether you need it for large-scale industrial antifreeze production or specialized pharmaceutical formulations.

We understand the importance of a reliable supply chain for your business operations. By choosing us, you are partnering with an experienced propylene glycol manufacturer who prioritizes customer satisfaction, product integrity, and competitive global pricing. Contact us today to inquire about our bulk offerings, obtain a quote for propylene glycol, and experience the difference of working with a dedicated chemical supplier.