Phthalocyanine Blue B is a reddish-brown powder and is an unstable ÃÂ±-type copper phthalocyanine pigment. Insoluble in water, ethanol and hydrocarbons; soluble in concentrated sulfuric acid in olive solution, diluted blue precipitated. It has bright color, high color yield, strong dispersibility, light fastness, heat resistance and excellent performance. Its tinting strength is several times that of Prussian blue and more than 20 times that of blue.
Relative tinting strength (compared with standard) 100%
Water soluble substance 1.5%
105Â° C volatiles 2.0%
Oil absorption 40~50g/100g