Mono Propylene Glycol (MPG), scientifically identified as 1,2-propanediol, is a clear, colorless, and viscous liquid with a faint, sweet odor and taste. It is a synthetic organic compound with the chemical formula $C_3H_8O_2$. As a dihydric alcohol (diol), it is characterized by its high degree of hygroscopicity and its ability to miscible completely with water, Alcohol, and various organic solvents. MPG is predominantly produced through the hydration of propylene oxide.
It is a versatile chemical available in two primary grades: USP/EP (Pharmacopoeia grade) and Industrial Grade. The USP grade is categorized as “Generally Recognized As Safe” (GRAS) by the FDA, making it essential for human consumption and topical applications. Unlike its counterpart, ethylene glycol, MPG possesses a very low toxicity profile and is readily biodegradable, making it the preferred choice in sensitive environments. Its multi-functional nature allows it to serve as a solvent, humectant, preservative, and heat transfer fluid across diverse global industries.
* Boasts high purity, ensuring consistent quality and performance across applications.
* Serves as a versatile chemical intermediate and effective solvent for various formulations.
* Highly effective in antifreeze and heat transfer fluid systems.
* Valued for its low toxicity profile, suitable for sensitive uses like food and pharmaceuticals.
* Features a clear, colorless, and odorless liquid form, ideal for consumer products.
* Functions as an excellent humectant and moisturizing agent in personal care and other products.
* Offers broad utility across diverse industries, from cosmetics to industrial fluids.
* Exhibits good thermal stability, making it reliable in various processing conditions.
* **Assay (GC):** 99.5% min
* **Water Content:** 0.1% max
* **Color (Pt-Co):** 10 max
* **Specific Gravity @ 20°C:** 1.035 – 1.037
* **Acidity (as Acetic Acid):** 0.005% max
* **Chloride:** 10 ppm max
* **Sulphated Ash:** 0.005% max
* **Refractive Index @ 20°C:** 1.430 – 1.432
* **Distillation Range (IBP-DP):** 184°C – 190°C
* **Iron:** 0.5 ppm max
* **Food, Flavor, & Fragrance:** Functions as a versatile solvent for flavors, colors, and extracts, a humectant for moisture retention, and an emulsification aid in various food products.
* **Pharmaceutical & Cosmetic Products:** Utilized as a solvent, extractant, diluent, and humectant in injectables, oral medications, lotions, creams, shampoos, and perfumes.
* **Industrial Heat Transfer Systems:** Serves as a low-toxicity component in coolants, antifreeze, and de-icing fluids due to its superior heat transfer properties.
* **Chemical Synthesis:** Acts as a key raw material in the production of unsaturated polyester resins and other industrial polymers.
* **Performance Fluids & Coatings:** Incorporated into hydraulic fluids, brake fluids, paints, coatings, adhesives, and sealants to enhance product properties and stability.
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