Sulfuric Acid → HCID 131715713, compound

Participants

Reaction Steps

a dried, partially purified vanadly phthalocyanine pigment preparation phase comprising mixing the crude vanadyl phthalocyanine pigment with a solution of between about 60 percent and about 80 percent by weight of H2SO4 to form a H2SO4 -vanadyl phthalocyanine pigment mixture, diluting the H2SO4 -vanadyl phthalocyanine pigment mixture with deionized water to form a diluted mixture, separating the vanadyl phthalocyanine pigment, washing the isolated vanadyl phthalocyanine pigment particles, and drying the vanadyl phthalocyanine particles to form the dried, partially purified vanadyl phthalocyanine pigment; and

Provenance & Evidence