... Formula Weight: 258.27 CAS No.: 13775-52-5 Potassium Aluminium Fluoride -Elpasolite[Application]It is most be used as flux ... togegher with food or acid ,or transport with them .In case of fire ,please quell the fire with water,sandy soil ... .69K, %27.01F, %48.96Si, %0.12Fe, %0.026 Potassium Aluminium Fluoride KAlF4