Trihydric Alcohol

Updated: 2026-09-16

Overview

Trihydric Alcohol, commonly known as glycerol or glycerin, is a simple polyol compound with three hydroxyl groups. It is a colorless, odorless, viscous liquid with a sweet taste. Glycerol is naturally occurring and can be derived from both animal and plant fats through hydrolysis. In industrial settings, glycerol is often produced as a byproduct of biodiesel production. Its versatility and non-toxic nature make it a valuable ingredient in numerous applications, ranging from food and pharmaceuticals to personal care products and industrial uses.

Physical and Chemical Properties

Trihydric Alcohol is highly hygroscopic, meaning it readily absorbs water from the environment. This property makes it an excellent humectant in cosmetics and food products. It has a high boiling point and low volatility, which contributes to its stability in various formulations. The compound is miscible with water and alcohols, forming homogeneous solutions. Its viscosity decreases with increasing temperature, making it easier to handle when heated. Glycerol is also non-reactive under normal conditions, though it can act as a weak acid or base in certain chemical reactions.

Main Applications

In the pharmaceutical industry, Trihydric Alcohol is used as a solvent, sweetener, and humectant in syrups and elixirs. It also serves as a lubricant in medical suppositories and as a component in cough syrups. The food industry utilizes glycerol as a sweetener, preservative, and thickening agent. It is commonly found in baked goods, dairy products, and beverages. In cosmetics, it acts as a moisturizer and emollient in lotions, creams, and soaps. Industrial applications include its use in antifreeze solutions, explosives, and as a plasticizer in polymers. Its ability to lower the freezing point of water makes it ideal for use in automotive and aviation antifreeze.

Safety and Storage

Trihydric Alcohol is generally recognized as safe (GRAS) by regulatory agencies when used in appropriate concentrations. However, prolonged skin contact can cause mild irritation, and inhalation of vapors should be avoided in confined spaces. Storage recommendations include keeping the compound in tightly sealed containers to prevent moisture absorption. It should be stored in a cool, dry place away from direct sunlight and heat sources. Bulk storage tanks should be made of stainless steel or other non-reactive materials to prevent contamination.

B2B Procurement Guide

When procuring Trihydric Alcohol, buyers should specify the required purity grade, such as USP (United States Pharmacopeia) or FCC (Food Chemicals Codex), depending on the intended use. It is advisable to request certificates of analysis (CoA) from suppliers to verify quality. Bulk purchases typically offer cost advantages, but storage capacity and shelf life should be considered. Buyers should also evaluate supplier reliability, delivery timelines, and compliance with industry standards. For international procurement, customs regulations and shipping conditions must be accounted for to ensure product integrity upon arrival.