Ultramarine Blue

Ultramarine Blue is Synthetic Inorganic pigment. Ultramarine Blue is the most commonly used blue earth pigment. It is a kind of sulphur compound of aluminous silicate, which has a crystal structure associated with celestite. So it has very bright light and pure color.

Product Name: Ultramarine Blue/ Ultramarine C. I. Pigment Blue 29 (77007)
CAS NO 57455-37-5
Molecular Weight: 862.60578
Molecular Formula: Na6Al4Si6S4O20
Application
Shade: Reddish blue
Main Application: paint, inks, build coating, plastic, Detergent, Stationery, paper, Textile Paste,etc.

Ultramarine blue Physical, Chemical and Fastness Properties

Technical Term	462	463	464	08
P.H. Value	8.0-10.0	8.0-10.0	8.0-10.0	8.0-10.0
Density(g/cm3)	2.35	2.35	2.35	2.35
Oil Absorption(ml/100g)%	25-45	25-45	25-45	30-40
Heat Resistance (  > )	300 (°C)	300 (°C)	300 (°C)	300 (°C)
Acid Resistance	1	1	1	1
Alkali Resistance	2-3	2-3	2-3	2-3
Resistance to Migratory	5	5	5	5
Content of Free Sulphur (%≤)	0.30	0.15	0.10	0.05
Through Screen (325m) (%≤)	0.10	0.10	0.10	0.10
Water Soluable (%≤)	1.50	1.50	1.00	1.00
Volatile Matter （105±2 ℃）(%≤)	1.00	1.00	1.00	1.00