Chemical formula :C32H16CuN8
Appearance:Bright blue powder
CAS logon number :147-14-8
Also known as copper phthalein, sea liqin blue B, pigment orchid, blue and blue palace, monas blue B, etc. It belongs to the phthalein pigment series.
It has many excellent properties. As the crystallization of high and stability, strong tinting strength for several times of Prussian blue, ultramarine blue over times, insoluble in most of the solvent, when heated to 500 degrees, also don't have sublimation and chemical change, with bright blue, and good wear resistance and transparency. Now, phthalein is not only used as a colorant, but also in the fields of organic semiconductor, photoconductive and sensitizing resin. Therefore, copper phthalein has become the largest and most widely used blue variety in organic material. Demand for it is growing in the world market. The acid blue is divided into type a and type b. The crude phthalein blue crystals produced in industry are type b. The phthalein blue lacks the coloring power of the blue and green tones. In order to make the goods, the pigment must be processed to make it type a.
1. Used for all kinds of gravure printing ink and fast printing ink.
2. Coloring for ink, paint, paint, plastic, rubber and stationery.
3. Used for painting watercolor, synthetic fiber raw pulp, oil color pigments.
4..Unsteady –α red light blue with strong coloring power for latex and waterborne coatings.
5. Stable –β green light blue, good in dispersion, high hiding power, used in alkyd resin paint.
Label ：Xn, Xi
Identification ：R36/37/38; R48; R41; R37/38; R20/21/22
Secure note：S22; S24/25