BC POWDER (POTASSIUM BICARBONATE-UREA) Brand: IFP PUREX Description • IFP PUREX is a high-efficiency dry chemical powder based on the potassium-urea debicarbonate reaction, known as potassium allophanate (potassium carbamate). • It is one of the most effective firefighting agents of class B and C. • The active ingredient is mixed with additives to improve its fluidity and make it weatherproof. • It is compatible with foam concentrates and can be used in dual applications.