[Glycerin supply and sales] What is the difference between crude glycerin and refined glycerin?

Glycerin (also known as glycerin) is colorless, odorless, and tasteless Sweet, an organic substance that appears as a clear, viscous liquid. It is miscible with water, alcohols, amines and phenols in any proportion, and the aqueous solution is neutral. Glycerin is a polyol moisturizer. The hydroxyl groups in the molecular structure can form hydrogen bonds with water molecules, which plays a good role in absorbing and locking water. Glycerin has a wide range of uses. Currently, it has more than 1,700 uses. It is used in both food and industry. Glycerol can generally be divided into four grades: industrial grade, cosmetic grade, food grade, and pharmaceutical grade. So what are the crude glycerin and refined glycerin that everyone usually hears about?

The following glycerin supplier will take you to learn about crude glycerin and refined glycerin:

Crude glycerol generally refers to glycerol with a glycerol content of less than 93%. It is generally used to refine and produce high-purity glycerin such as 95%, 98% and 99.5%.

Description of crude glycerol ingredients:

(1), Glycerin content: 80%-90%

(2), Impurity content: 10%MAX

p>

　(3), Moisture content: 10%MAX

　(4), MONG: 2.5%MAX

　(5), Organic volatile residue: 2.5%MAX

　(6), No sugar removed

　(7), Oil content: 0.5%MAX

　Refined glycerin is a general term, and it is divided into different categories according to the source of refined glycerol production. They are saponified glycerin, hydrolyzed glycerin and refined glycerin. Refined glycerin generally refers to cosmetic grade 99.5% glycerin, which is USP grade glycerol that complies with the United States Pharmacopeia.