Pentaerythritol is a polyol organic compound with the formula C5H12O4. It is soluble in water, methanol, glycerol, etc., with the appearance of white crystals; the molecular formula of dipentaerythritol is C10H22O7. It is slightly soluble in water and has the appearance of white crystalline powder.
Pentaerythritol and dipentaerythritol are used in the production of resins, lubricants, antioxidants, etc. They are also used as a raw material for the synthesis of rosin ester, which is commonly applied in paint, desiccants and adhesives, boasting a wide range of industrial and everyday applications.
Pentaerythritol is a polyol organic compound with the formula C5H12O4. It is soluble in water, methanol, glycerol, etc., with the appearance of white crystals; the molecular formula of dipentaerythritol is C10H22O7. It is slightly soluble in water and has the appearance of white crystalline powder.
Pentaerythritol and dipentaerythritol are used in the production of resins, lubricants, antioxidants, etc. They are also used as a raw material for the synthesis of rosin ester, which is commonly applied in paint, desiccants and adhesives, boasting a wide range of industrial and everyday applications.
Rosin esters are compatible with many polymers and are very effective tackifiers. Rosin ester was primarily derived from natural pine trees in the earlier days. Natural rosin ester is yellow and requires the addition of modified additives to enhance stability. Such a requirement has led to the industry’s gradual shift to using chemical raw materials to produce rosin ester, with pentaerythritol and dipentaerythritol being the most popular choices.
Dipentaerythritol is non-toxic and non-hygroscopic, which makes rosin ester made from dipentaerythritol more stable. When high-purity dipentaerythritol is used to produce rosin ester, it significantly reduces the production cost and enhances product quality. It is commonly used in high-end applications such as aviation lubricants and photosensitive coatings.
Pentaerythritol is manufactured from formaldehyde and acetaldehyde in the presence of sodium hydroxide, with dipentaerythritol and sodium formate obtained as the byproduct of the manufacturing process. Formaldehyde and acetaldehyde are synthesized from methanol and ethylene respectively:
Methanol is then converted into formaldehyde through dehydrogenation, with the separated hydrogen used as fuel. The production process can produce high-purity pentaerythritol and dipentaerythritol while reducing environmental impact.
Rosin ester made from pentaerythritol and dipentaerythritol has good thermal stability, making it less susceptible to deterioration due to environmental factors during industrial application or storage. Rosin ester produced from the white translucent pentaerythritol and dipentaerythritol is relatively transparent with a slight pine scent and can be used by a wide range of industries.
As a key chemical materials supplier, Degohaimwell is committed to the highest standards for our manufacturing process and product performance. We continue to improve the manufacturing process and enhance product purity to meet the production needs of different industries. To find out more about pentaerythritol and dipentaerythritol supplied by Degohaimwell, please contact us.
Di-pentaerythritol Details
Chemical Name: Di-pentaerythritol
Purity: 85%/90%
CAS No.:126-58-9
Molecular Structure:
Appearance: White Powder
Dipentaerythritol Typical Properties
| items | Results | |
| Dipentaerythritol (Di-PE) mass fraction /% ≥ | 90 | 85 |
| Pentaerythritol mass fraction /% ≤ | 90.0 | 85.0 |
| Three pentaerythritol mass fraction /% ≤ | 3.0 | 4.0 |
| Ignition residue mass fraction /% ≤ | 7.0 | 10.0 |
| Dry reduction mass fraction /% ≤ | 0.1 | 0.1 |
| Hydroxy mass fraction /% | 1.0 | 1.0 |
| Final Melting Point /℃≥ | 38.0～40.0 | 38.0～40.0 |
| Phthalic acid resin chromaticity/(FeCoCu standard color solution)No. ≤ | 205 | 205 |
| Chrominance of phthalate resin (Standard Chrominance of Fe, Co, Cu) |
max. 2 | max. 2 |
Di-pentaerythritol Usage
1. As an important fine chemical intermediate, it is regarded as the middle and high-end product of pentaerythritol, which is mainly used in the high-end coatings industry.
2. Production of polyether, polyester, polyurethane, high-grade alkyd resin and photosensitive resin film
3. Used in advanced aviation lubricating oil
4. Used as a stainless steel color plate, advanced granite spray mask with strong adhesive force, friction resistance, and aging resistance
Di-pentaerythritol Packaging and Shipping
Packing: 25 kg/paper bag lined with PE bag or as customer's requirements
1x 20ft container FCL = 18 tons with pallets,
1x 20ft container FCL = 20 tons without pallets.
Di-pentaerythritol Storage
1. Stored in a cool dry and ventilated warehouse
2. Avoiding light and heat
3. Protecting it from leakage, rain, and sunlight during transportation
