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This section provides an overview for diglycerin as well as their applications and principles. Also, please take a look at the list of 5 diglycerin manufacturers and their company rankings. Here are the top-ranked diglycerin companies as of December, 2024: 1.Henan Tianfu Chemical Co.,Ltd, 2.Sakamoto Yakuhin kogyo Co., Ltd., 3.Qingdao HuaYi Biological Technology Co., LTD..
Table of Contents
Diglycerin, or diglycerol, is a polyhydric alcohol formed by the dimerization of two glycerol molecules, resulting in a compound with four hydroxyl groups. Classified under the Fire Service Law as both a "Class 4 Hazardous Substance" and "Class 3 Petroleum," it presents as a colorless, odorless, viscous liquid. Produced through the dehydration-condensation of glycerin, diglycerin is purified from a mix that includes triglycerin via distillation.
Its hygroscopic nature and excellent moisture retention make it a favored moisturizer in cosmetics, alongside various industrial applications such as raw materials for urethane and surfactants, and as a plasticizer for water-soluble polymers.
In cosmetics, diglycerin is prized for its skin compatibility, enhancing hydration without irritation, and is found in lotions, facial cleansers, and massage gels. Industrially, it serves as a versatile raw material in polyurethane production, surfactant synthesis, and as a highly polar stationary phase in gas chromatography due to its four reactive hydroxyl groups.
Water and ethanol soluble but ether insoluble, diglycerin boasts a flash point of 190-202°C and a specific gravity of 1.29. Comparatively, it offers a lighter skin feel than glycerin and poses a lower risk of promoting acne-causing bacteria.
The molecular essence of diglycerin involves the condensation of two glycerol units, retaining four hydroxyl groups, which contribute to its hydrophilic nature. Its chemical formula is O [CH2CH (OH) CH2OH]2, indicating its capacity for forming derivatives like diglycerin fatty acid ester when an ester bond is introduced.
Diglycerin-based surfactants, such as diglycerol fatty acid esters, exhibit hydrophilic and hydrophobic properties determined by the fatty acid types esterified to the diglycerin backbone. These include variants like diglycerin laureate, stearate, and olate, with surfactant performance varying based on the fatty acid chain length. However, full esterification of all hydroxyl groups eliminates its surfactant functionality by removing the hydrophilic group.
*Including some distributors, etc.
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Sakamoto Yakuhin Kogyo Co., Ltd., founded on November 17, 1947, and based in Chuo-ku, Osaka, Japan, is a manufacturer and supplier of glycerin. The company's product range includes refined glycerin, Polyglycerol (#310, #500, #750), Diglycerin801, specialty epoxy resins, and various solvents. These products are used in applications ranging from food additives to cosmetics, chemicals, and synthetic resins. The company serves the food, cosmetics, chemical, and resin industries. Additionally, it provides solutions across its Glycerin, Food Additives, Cosmetic Materials, Functional Glycerin Derivatives, and Synthetic Resin Sections.
Henan Tianfu Chemical Co., Ltd., founded in 2009, is a Chinese chemical manufacturer and supplier based in Zhengzhou, Henan. The company has developed over 500 compounds, mostly for fine applications in manufacturing and life science. Their product range includes electronic chemicals, ultraviolet (UV)-curing materials, ionic liquids, and pharmaceutical materials. Additionally, Henan Tianfu has expanded into the fine chemical market, offering noble metal catalysts, organic phosphine ligands, and organic light-emitting diode (OLED) intermediates. They are also involved in the development of pesticides and medical intermediates, as well as the analysis and synthesis of electronic chemical materials.
Millipore Sigma, formerly known as Sigma-Aldrich, was created in 175 through the merger of Sigma Chemical Company and Aldrich Chemical company and today is a subsidiary of Merck. Millipore Sigma is a life science and biotechnology company serving the industry with several products and services. Some of their product categories include peptide synthesis materials, biochemicals, building blocks, catalysts, chemical biology, chemical synthesis, flavors & fragrances, formulation, lab chemicals, lab safety, APIs, and stable isotopes. Services include characterization, contract manufacturing, custom products, software, support, testing, and mRNA development & manufacturing.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Henan Tianfu Chemical Co.,Ltd |
33.3%
|
| 2 | Sakamoto Yakuhin kogyo Co., Ltd. |
22.2%
|
| 3 | MilliporeSigma |
22.2%
|
| 4 | Qingdao HuaYi Biological Technology Co., LTD. |
11.1%
|
| 5 | KOKYU ALCOHOL KOGYO CO., LTD. |
11.1%
|
Derivation Method
The ranking is calculated based on the click share within the diglycerin page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
Japan
|
1 | 50.0% |
China
|
1 | 50.0% |
