Propylene Glycol (USP/Food Grade)

Description

Propylene Glycol (1,2-propanediol) is a high-purity, colorless, and nearly odorless liquid known for its exceptional hygroscopic and emulsifying properties. As a versatile “generally recognized as safe” (GRAS) compound, it is a staple in the food, pharmaceutical, and industrial sectors, acting as a powerful humectant, solvent, and stabilizer.

Key Features & Benefits

1. High-Efficiency Humectant

Propylene Glycol excels at retaining moisture, making it indispensable in the production of cosmetics, personal care items, and food products. It prevents drying out and maintains the texture and consistency of everything from baked goods to skin lotions.

2. Superior Solvent & Carrier

With its ability to dissolve both water-soluble and oil-soluble substances, it serves as a primary carrier for flavors, colors, and active pharmaceutical ingredients. It ensures uniform distribution and stability in complex formulations.

3. Low Toxicity Antifreeze & Coolant

Unlike ethylene glycol, Propylene Glycol is significantly less toxic, making it the preferred choice for secondary cooling systems in the food and beverage industry, as well as in eco-friendly antifreeze solutions for HVAC and RV systems.

4. Viscosity Modifier & Stabilizer

It helps control the “thickness” of liquids, preventing ingredients from separating. This ensures that products like vaccines, ointments, and liquid detergents remain stable throughout their shelf life.

Technical Specifications

Common Applications

• Food & Beverage: Used as a humectant in marshmallows and shredded coconut, and as a solvent for food colorings and extracts.

• Cosmetics & Skincare: A primary ingredient in moisturizers, shampoos, and sunscreens to enhance skin permeability and hydration.

• Pharmaceuticals: Acts as a solvent for oral, injectable, and topical formulations.

• Vaping Industry: Used as a base carrier (PG) in e-liquids to produce a “throat hit” and carry flavor profiles.

• Industrial: Utilized in the production of polyester resins, de-icing fluids, and liquid detergents.

Safety & Storage

• Storage: Store in a cool, dry, well-ventilated area. Keep containers tightly closed as the liquid is hygroscopic (absorbs water from the air).

• Handling: Avoid contact with strong oxidizing agents. While low in toxicity, standard PPE (gloves and goggles) is recommended for bulk handling to prevent minor skin or eye irritation.

• Environmental: Readily biodegradable with low potential for bioaccumulation.