Inorganic pigment blue 29 Ultramarine blue

1.Pigment Blue 29

CAS No.：57455-37-5 
molecular formula：6[O4Si-4].S3-2.6[Al+3].8[Na+]
2.Properties: Ultramarine blue is a bright blue powder, which can eliminate the yellow shade in the white substance. It is alkali-resistant, heat-resistant, and light-resistant. It decomposes and fades with acid, and is insoluble in water. Ultramarine is an Inorganic Pigment. It is made by mixing and firing sulfur, clay, quartz, carbon, etc.
3.In terms of coloring： it is used for blue paint, paint, rubber, ink, oilcloth, color painting and blue paint for building exterior walls
4. In terms of whitening, it is used for papermaking, soap washing powder, starch, white products and civil wall painting, etc.
5.Painting: Add blending oil, glue and acrylic to ultramarine blue powder to make oil painting, watercolor painting, gouache painting and acrylic painting respectively. Ultramarine is a mineral Pigment, transparent, weak in hiding power and bright, not suitable for painting very dark tones. But it is suitable for decorative colors, especially in ancient Chinese buildings.