Pentaerythritol (pentaerythritol, monopentaeritritol) - is a monotropic tetravalent alcohol.

98% Pentaerythritol is a white crystalline powder, moderately hygroscopic; it has a sweet taste, no odor and low solubility in water.

Pentaerythritol is prepared by reacting formaldehyde and acetaldehyde in alkaline medium, followed by a disproportionation known as Cannizzaro reaction.

Molecular formula: C5H12O4
Molecular Weight: 136.15
CAS Number: 115-77-5

Pentaerythritol is used as a feedstock for the production of paints based on alkyd resins; for synthetic and semi-synthetic oils and additives for oils. Also, pentaerythritol may as well be used to manufacture products based on natural resins, self-extinguishing materials, antioxidants, PVC stabilizers, etc.

Parameter Value for pentaerythritol *
Appearance of pentaerythritol white crystalline powder
Monopentaeritritol content, min. ≥ 98 %
Content of hydroxyl groups, min. ≥49,00%
Ash, max. ≤ 0,005 %
Moisture content and volatile matter, max. ≤ 0,50 %
Specific gravity at 20°C ~ 1,40 g/cm³
Bulk density of pentaerythritol ~ 600 – 700 g/dm³
The melting point of pentaerythritol 257°C
Solubility in water at 25°C 7,1
Colour in APHA, max. 200

* More accurate data is provided in a certificate of analysis for each lot of pentaerythritol.

Application of pentaerythritol:

  • pentaphthalic and glyphthalic resins for paints and enamels,
  • alkyd resins for solvent-borne inks,
  • for self-extinguishing materials and fire retardant coatings,
  • obtaining rosin esters for adhesives and printing inks,
  • for PVC stabilizers
  • in phenolic antioxidants for polyolefins
  • production of synthetic and semi-synthetic oils,
  • in the production of Pentaplast,
  • for the synthesis of esters of acrylic acid for the treatment of radiation exposure

The shelf life of pentaerythritol is 12 months from the date of manufacture.

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