RK-513 – High Performance Reactive Flame Retardant

Chemical Name: 3-Bromo-2,2-bis(bromomethyl)propanol
Brand Name: RK-513
CAS NO: 1522-92-5, 36483-57-5
Chemical Formula: C5H9Br3O
Molecular Weight: 324.92

RK-513 is a reactive flame retardant containing 73% aliphatic bromine. It offers superior thermal stability due to its high bromine content and is used particularly in applications where hydrolytic and light stability are critical.

RK-513, which is generally preferred as a reactive intermediate together with phosphorus, is an effective solution in high-solubility polyurethane systems. It forms pendant urethane groups thanks to its single hydroxyl function and is highly compatible with CFC-free PU systems.

It is a reliable option in rigid and flexible PU applications requiring high flame retardancy. It also offers wider formulation possibilities with a mixture of monofunctional and bifunctional components.

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