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What are the different types of glycerin (CAS 56-81-5 )?

Jun 16, 2025 Leave a message

Glycerin, also known as glycerol or glycerine, plays a pivotal role in numerous industrial applications. With the chemical formula C3H8O3, this mainly colourless and odourless liquid (depending on grade) is composed of carbon, hydrogen, and oxygen atoms, and its unique chemical properties form the backbone of countless manufacturing processes and end products from pharmaceuticals and cosmetics to food and drink.

 

What are the two types of glycerine?

There are two different types of Glycerin: Vegetable (natural) and Petrochemical (synthetic).

Vegetable Glycerin is derived from plant-based oils such as coconut or soybean. As this material is obtained from vegetable fats it is considered to be more sustainable and environmentally favourable as it comes from renewable plant sources.

Petrochemical Glycerin, although now less common, is synthesised from petrochemical sources, primarily propylene or petroleum-based feedstocks.

 

Industrial Grade 997 Glycerin for Coatings CAS 56-81-5
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Pure Glycerine Liquid For Skin Care CAS 56-81-5
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different Grades of glycerine

Grade Purity Primary Source Main Applications Regulatory Standards
Technical 80–99% Natural fats or synthetic Industrial lubricants, chemicals, tobacco No strict food/medical standards
Food ≥99.5% Vegetable oils Food additives, sweeteners FDA, EFSA, etc.
Pharmaceutical ≥99.7% Vegetable oils Medicines, topical care, medical devices USP, BP, EP, GMP
Cosmetic 98–99.5% Vegetable oils Skincare, haircare, makeup CTFA, EU Cosmetics Regulations
Reagent ≥99.9% Highly purified Lab research, chemical synthesis Low impurity standards for scientific use

 


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Gneebio is located in Henan Province, China, we have passed the quality system certification, have self-managed import and export rights, and our products are well received by customers.

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