Glycerin USP 99.7%
Glycerin USP 99.7% is a high-purity, pharmaceutical-grade polyol, widely recognized for its humectant and emollient properties.
Description
Glycerin USP 99.7%, also known as glycerol, is a trifunctional alcohol with the chemical formula C3H8O3 and CAS number 56-81-5. It is a colorless, odorless, viscous liquid that is sweet-tasting and non-toxic. Its high purity, meeting United States Pharmacopeia (USP) standards, ensures suitability for a broad range of sensitive applications. Glycerin is a hygroscopic compound, meaning it readily absorbs moisture from the air, making it an excellent humectant. It is completely miscible with water and alcohol, but insoluble in hydrocarbons. This versatile compound is derived from both animal fats and vegetable oils, typically as a byproduct of soapmaking or biodiesel production. Its molecular structure allows for extensive hydrogen bonding, contributing to its unique physical and chemical properties, including its high boiling point and viscosity. The 'USP' designation signifies that it adheres to stringent quality control measures regarding purity, identity, strength, and quality, making it a reliable choice for pharmaceutical, cosmetic, and food industries where product integrity is paramount. Its non-toxic nature further enhances its utility in consumer-facing products.
Applications
Glycerin USP 99.7% finds extensive application across various industries, primarily due to its humectant, emollient, and solvent properties. In the cosmetic and personal care industry, it is a key ingredient in moisturizers, lotions, soaps, and shampoos, serving to hydrate the skin and hair while improving product texture. The pharmaceutical sector utilizes it as a solvent, humectant, and sweetening agent in medications, syrups, and suppositories. It also acts as a base for various formulations. In the food industry, glycerin is used as a humectant, solvent for flavorings and food colors, and as a sweetener. Furthermore, it is employed in the manufacturing of alkyd resins, polyurethanes, and cellophane, demonstrating its utility as a chemical intermediate. Its role in tobacco processing as a moistening agent and in antifreeze solutions further highlights its diverse industrial applications.
Storage & Handling
Store in a tightly closed container in a cool, dry, well-ventilated area, away from incompatible materials. Protect from physical damage. Avoid direct sunlight and excessive heat. Use appropriate personal protective equipment (PPE) during handling to prevent skin and eye contact.
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