Product Description Product Name Acid resistant ultramarine C.I. No Pigment Blue 29 CAS No 57455-37-5 EINECS No. 309-928-3 Molecular Formula Na6Al4Si6S4O20 Pigment Class Sodium Aluminum Sulfosilicate Features Acid resistant ultramarine Blue Pigments offer a unique reddish blue shade that make white shades appear whiter, grey shades appear more blue, and black shades appear deeper. They are semi-transparent to visible light and provide NIR transparency. Acid resistant ultramarine Blue Pigments properties include ease of dispersion with excellent dimensional stability, resulting in no warping or shrinkage. Encapsulated grade Acid resistant ultramarine Blue that shows high acid resistance in use and good dispersibility, especially recommended for PVC, POM or any other polymer in contact with acids or that can release acids during the service life. Application Plastics: Polyolefins, PS, ABS, engineering polymers, PVC, silicones, and rubber Cool Coatings: Liquid architectural and industrial, powder, coil and stoving coatings Industrial: Cement and concrete Cosmetics Artists' colors Leather tanning Package 25kgs or 20kgs per paper bag/drum/carton. *Customized packaging available on request. QC and Certification 1.Our R&D laboratory features equipment such as Mini Reactors with Stirrers, Pilot Reverse Osmosis System and Drying Units, making our technique in the lead. We have standard QC system which meets EU standard and requirements. 2.With the quality management system certificate of ISO9001 and environmental management system certificate of ISO14001, our company not only sticks to the strict quality-control system according to the international standard, but also focuses on protecting the environment and promoting the sustainable development of itself and the society. 3.Our products meet the stringent mandatory requirements of REACH, FDA, EU's AP(89)1 &/or EN71 Part III. Specification Physical and Chemical Properties Test Item Specification Appearance Blue Powder Shade Reddish Heat Resistance 300℃，5min Light Fastness 8 Acid Resistance 1 Alkali Resistance 2-3 PH Value 8 Oil Absorption (g/100g) 30-40 Density 2.35g/cm³ Water Content (%) ＜0.5