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Tetrabromophthalate Diol

RK-628 – High Efficiency Reactive Flame Retardant

Chemical Name: Tetrabromophthlate Diol
Brand Name: RK-628
CAS NUMBER: 20566-35-2
Chemical Formula: C15H16O7Br4
Molecular Weight: 627.8

RK-628 is a reactive flame retardant specially developed for polyurethane (PU), adhesives and coatings. It offers excellent performance at high temperatures and is non-corrosive, so it does not disrupt the catalyst balance on metal surfaces and does not cause precipitation.

Advantages:

  • High temperature resistance

  • Stability on metal surfaces – Does not precipitate, maintains catalyst stability

  • Solubility properties – Soluble in alcohol, toluene and acetone; insoluble in water

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