Wednesday, July 06, 2011

Ultramarine-Blue-Pigment

Ultramarine is a blue pigment consisting primarily of a double silicate of aluminium and sodium with some sulfides or sulfates, and occurring in nature as a proximate component of lapis lazuli.

China clay kaolin has been the traditional raw material for UB pigment synthetic production.

Ultramarine blue is a historical pigment having been found in Egyptian tomb paintings. Synthetic ultramarine was produced at the beginnig of the nineteenth Century.

Ultramarines are HYDROPHOBIC, or ‘water hating’, and often do not mix well with water.

Ultramarine blue made with Asturian refined hard kaolin from deposits associated with Armorican quartzite.

No comments: