Product Features

• Good dispersibility
• High color strength
• Brilliant color shade
• Effective removal of yellow light from white products
• Good dispersibility

Technical Specification

• Color (compared with standard sample): Approximate
• Tinting strength (compared with standard sample): 100±5
• Water soluble content: 1.5% m/n
• Free sulphur content: 0.30% m/n
• Volatile matter content: 1.00% m/n
• Partical size 43μm (325mesh): 0.50% m/n
• Oil absorption: 25-45 % m/n
• Volatile matters at 105℃: ≤0.5%

Application

Synthetic ultramarine, being very cheap, is largely used for wall painting, the printing of paper hangings and calico, etc., and also as a corrective for the yellowish tinge often present in things meant to be white, such as linen, paper, etc. Bluing or "Laundry blue" is a suspension of synthetic ultramarine (or the chemically different prussian blue) that is used for this purpose when washing white clothes. It is also often found in make-up such as mascaras or eye shadows. Large quantities are used in the manufacture of paper, and especially for producing a kind of pale blue writing paper which was popular in Britain.[7] During World War I, the RAF painted the outer roundels with a color made from Ultramarine Blue. This became BS 108(381C) Aircraft Blue. It was replaced in the 1960s by a new color made on Phthalocyanine Blue, BS110(381C) Roundel Blue.