Description: Synthetic iron oxide CAS # 122259-21-1 The following C. I. Pigment is acceptable under CFR 21, Regulation 177.2600 “Rubber articles intended for repeated use” per section 178.3297 “Colorants for polymers” and/or section 73.2725 (Ultramarines). Use of this pigment, while permitted, does not automatically qualify a rubber compound under these regulations. Certain extraction tests and other use limitations may exist depending upon the pigment and the type of food(s) the rubber may contact. The Technical Staff at Akrochem can also provide assistance with FDA compounding in general. Information provided by Akrochem Corporation |