Glycerin USP Grade

Product Overview

Glycerin USP Grade, chemically known as Glycerol, is a high-purity, colorless, and odorless triol (C₃H₈O₃). This viscous liquid is manufactured to meet rigorous United States Pharmacopeia (USP) specifications, ensuring low impurity levels and consistent quality for critical applications. As a hygroscopic substance, it excels at retaining moisture, making it an essential humectant and solvent in pharmaceutical formulations, food production, and personal care manufacturing.

Our Glycerin USP Grade is miscible with water and alcohol, providing excellent solubility and stability. It is tested to ensure compliance with USP-NF Monograph requirements, including strict limits on heavy metals, residue on ignition, and water content. This reliability makes it the standard choice for engineers and purchasing agents sourcing raw materials for topical creams, oral syrups, food additives, and industrial coatings where purity is paramount.

Key Properties

• Chemical Formula: C₃H₈O₃
• CAS Number: 56-81-5
• Grade: USP (United States Pharmacopeia)
• Assay: 99.0% – 100.5%
• Appearance: Clear, colorless, viscous liquid
• Specific Gravity: 1.261 g/mL at 25°C
• Solubility: Miscible with water and ethanol
• Flash Point: > 199°C (Closed Cup)

Common Applications

• Pharmaceutical Formulation: Acts as a solvent, plasticizer, and humectant in syrups, elixirs, and topical ointments.
• Food & Beverage: Used as a solvent for flavors, a humectant to retain moisture in processed foods, and a texturizer.
• Personal Care Manufacturing: Essential ingredient in lotions, soaps, and toothpaste to maintain hydration and product consistency.
• Industrial Coatings: Functions as a plasticizer in alkyd resins and paints to improve flexibility.
• Botanical Extraction: Utilized as a solvent for extracting non-alcohol based botanical tinctures.

Safety Precautions

While Glycerin USP Grade is widely used in consumable products, standard industrial safety practices should be observed during handling. Store in a cool, dry place in tightly closed containers (HDPE, stainless steel, or glass) to prevent moisture absorption from the air. This product is hygroscopic.

Wear appropriate Personal Protective Equipment (PPE) such as safety glasses and gloves during transfer to avoid splashing. In the event of a spill, rinse the area thoroughly with water, as glycerin can create slippery surfaces. Refer to the Safety Data Sheet (SDS) for detailed storage and emergency response protocols.

Related Products

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• Denatured Alcohol 190 Proof 3C
• Denatured Alcohol 200 Proof 3A