Chemical

Products

Glycerine USP

Cas Number

56-81-5

Other Names

Glycerin

Glycerine

Propanetriol

1,2,3-Trihydroxypropane

1,2,3-Propanetriol

The formula

C3H8O3

Introduction

Glycerol also called glycerine or glycerin; is a simple polyol compound. It is a colorless, odorless, viscous liquid that is sweet-tasting and non-toxic. The glycerol backbone is found in all lipids known as triglycerides.

Physical and Chemical Properties
Physical state and appearance Liquid. (Viscous (Syrupy) liquid.)
Odor Mild
Boiling Point 290°C (554°F)
Flash point CLOSED CUP: 160°C (320°F).
Melting Point 19°C (66.2°F)
Specific Gravity 1.2636 (Water = 1)
Vapor Density 3.17 (Air = 1)
Water/Oil Dist. Coeff: The product is more soluble in water; log(oil/water) = -1.8
Solubility Miscible in cold water, hot water and alcohol. Partially soluble in acetone. Very slightly soluble in diethyl ether (ethyl ether).
Purity 99.0% max
Free acid 0.005% max
Water 0.5% max
Inhibitor 25ppm (Monomethyl Ether Hydroquinone)
Applications

1. Food industry In food and beverages, Glycerine serves as a humectant, solvent, and sweetener, and may help preserve foods. It is also used as filler in commercially prepared low-fat foods (e.g., cookies), and as a thickening agent in liqueurs.

2. Personal lubricants commonly contain Glycerine.

3. Glycerine is an ingredient in products such as hair gel.

4. Glycerine suppositories used as laxatives Glycerine is used in medical, pharmaceutical and personal care preparations, mainly as a means of improving smoothness, providing lubrication, and as a humectant.

5. Glycerin is often used in electronic cigarettes to create the vapor.

6. Antifreeze Like ethylene glycol and propylene glycol, Glycerine is a non-ionic kosmotrope that forms strong hydrogen bonds with water molecules, competing with water-water hydrogen bonds. This interaction disrupts the formation of ice . The minimum freezing point temperature is about −36 °F (−38 °C) corresponding to 70% Glycerine in water.