PENTAERYTHRITOL
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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