Halogen-free pentaerythritol esters are also environmentally friendly alternative to conventional electrical transformer fluids, being both readily biodegradable and non-hazardous in water. They advantageously replace polychlorobiphenyl (PCB), and even silicone-based or fluorinated hydrocarbons, as dielectric fluid in transformers. Their low volatility and high flash point give them an excellent resistance to ignition in case of major electrical failure and transformer rupture.
Pentaerythritol also finds use in pyrotechnics, as it is needed to make 'blue aluminium'.
Pentaerythritol was first synthesized in 1891 by German chemists Bernhard Tollens and his student P. Wigand.
|Appearance & Physical State:||white crystalline solid|
|Boiling Point:||276ºC (30 mmHg)|
|Water Solubility:||1 g/18 mL (15 ºC)|
|Stability:||Stable. Incompatible with strong acids, strong oxidizing agents, acid chlorides, acid anhydrides. Combustible.|
|Storage Condition:||Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.|
|Vapor Pressure:||<1 mm Hg ( 20 °C)|
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