Ultramarine Blue

Synonyms: CAS 57455-37-5, CI 77007, pigment blue 29, blue ultramarine,
Ultramarine, Oriental Blue, Permanent Blue, P.Blue 29
Application: It is commonly used as a colorant and optical brightener for
plastics, rubber, inks, color painting, textiles, paper, cosmetics, detergents,
cement and construction.
Ultramarine Blue is a saturated, semitransparent, dark, violet-leaning blue.It
is composed of sodium aluminosilicate and three sulfur atoms in the form of
sulfide or sulfate, the unpaired S3-anion originating from the blue. It is
prepared from inexpensive modifier components such as kaolin, sodium carbonate
and sulfur. Synthetic ultramarine does not show vivid blue as much as natural
ultramarine, due to even particle size, diffusing light more uniformly.
Synthetic dark blue can be affected by light, oil or lime. Ultramarine has heat
and alkali resistant properties. It is used as a colourant and optical
brightener for plastics, rubber, inks, paints, cosmetics, detergents, cement,
textiles and paper.

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