Pentaerythritol dibromide CAS#3296-90-0

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• Chemical Name:  Pentaerythritol dibromide
• CAS No.:    3296-90-0
• Molecular Fomula: ：C5H10Br2O2
• Molecular weight： 261.94
• Appearance: White Powder
• Sample：Available

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Description of bromomethyl

• It is a brominated flame retardant, previously shown to be a multisite carcinogen in experimental animals. The compound is used as a fire retardant in unsaturated polyester resins, in molded products, and in rigid polyurethane foam. It shows clear evidence of carcinogenicity and genotoxicity activity.

Basic Info of bromomethyl

Basic Info
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Properties
Safety Info
Basic Info

Numbering system

Properties

Safety Info

What is Pentaerythritol dibromide?

• With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is Pentaerythritol dibromide   which has developed particularly rapidly in recent years. Do you know about Pentaerythritol dibromide?
• The official answer：Pentaerythritol dibromide is a chemical compound with a melting point of 112-114°C(lit.) boiling point of 235°C(roughestimate)density 1.8049(roughestimate)vapour pressure 1Chemicalbook0mmHg(178°C)refractive index 1.5120(estimate)Storage conditionsInertatmosphere,RoomTemperature

What’s the application of Pentaerythritol dibromide?

• Use a reactive flame retardant, which can achieve a tighter flame retardant effect after use. organic synthesis intermediate production method In a 500ml three-necked flask equipped with an electric stirrer, thermometer, and reflux condenser, add 55g of pentaerythritol (0.40mol), 200g of 40% hydrobromic acid solution (1.0mol), and a certain amount of glacial acetic acid. After the reaction, remove water and unreacted hydrogen bromide under reduced pressure, then add 300ml of a mixture of toluene and water in equal volume for stirring for 3h. Filter, recrystallize with hot water, and decolorize with activated carbon. The product was filtered and dried under vacuum to give 84.7g of finished product with a yield (in pentaerythritol) of 80.8%.

Conclusion

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