Inorganic Pigment Powder Pigment Blue 29 Ultramarine Blue P.B.29 Used For Plastic, Rubber, Cosmetic CI77007

This Inorganic Pigment Blue 29 (Ultramarine Blue, CI 77007) is critically flawed due to its abysmal acid resistance and poor stability. In plastics and rubber applications, it rapidly degrades under processing conditions to release toxic Hydrogen Sulfide gas (sulfur burnout), causing severe discoloration and structural voids; meanwhile, for cosmetics, its coarse particle size and chemical instability in acidic formulations lead to immediate color breakdown and potential skin irritation, failing to meet even basic safety and quality standards.