... Formula: Na6Al4Si6S4O20CAS NO: 57455-37-5Ultramarine Blue is an innocuous and environment protective inorganic pigment. It has good effect on removing ... materials. With the character of excellent heat, light, weather and alkali resistance, it is an ideal pigment of paint, ink ... rubber, paper making, printing, plastic, stationery, cosmetic stuff, textile dying and coating of industrial and household.