Pentaerythritol
Tetrafunctional Polyol for Alkyd Resins, Esterification and Industrial Synthesis
CAS 115-77-5
Pentaerythritol is a tetrafunctional polyol used in alkyd resins, ester chemistry, coatings, synthetic lubricant intermediates, polyurethane systems, and other industrial formulations.
Why Pentaerythritol
- Tetra-functional structure supports high crosslink density in resin systems
- Supports hardness, lustre, and durability in alkyd coating systems
- Low chromaticity and controlled ash and moisture support formulation consistency
- Crystalline solid suitable for esterification and downstream synthesis
Technical Data
Chemical Properties
| Linear Formula | C(CH2OH)4 |
|---|---|
| Molecular Formula | C5H12O4 |
| Molecular Weight | 136.15 g/mol |
| Appearance | Crystalline solid |
| Purity | >=98 wt% |
| Hydroxyl Value | >=48.5 wt% |
| Moisture | <=0.2 wt% |
| Ash Content | <=0.05 wt% |
| Chromaticity | <=1 |
| Melting Point | 257°C |
| Flash Point | 150°C |
Typical chemical properties for product identification and formulation planning.
Functions
Applications
Typical Applications
Coatings, Resins & Paints
Used as an alkyd-resin precursor and raw material for coatings, paints, inks, varnishes, drying oils, and intumescent systems.
Industrial Intermediates
Used as a polyol and chemical intermediate for plasticizers, high-grade synthetic lubricants, and polyurethane systems.
Product Family
Related in Polyols & Intermediates
Technical Documents
Documentation
Document request status
Logistics
Packaging & Storage
Packaging options
- 25 kg bag
- 500 kg or 1000 kg bulk bag
Storage
Store in the original tightly closed container in a cool, dry, well-ventilated place. Minimise dust generation and keep away from heat, ignition sources, and incompatible oxidizing materials.
FAQ
Frequently asked questions
What is Pentaerythritol used for?
It is used in alkyd resins, rosin esters, coatings, synthetic ester intermediates, and intumescent flame-retardant systems.
What is a key processing consideration?
Avoid generation and accumulation of fine dust, which can form an explosive dust-air mixture.
What are the key chemical properties?
The TDS lists purity of at least 98 wt%, hydroxyl value of at least 48.5 wt%, moisture of no more than 0.2 wt%, and a melting point of 257°C.
What packaging can be supplied?
Pentaerythritol is packed in 25 kg bags or 500 kg and 1000 kg bulk bags.
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