RED: cadmium red, iron oxide, or napthol.
“Iron oxide is also known as frequent rust. Cadmium pigments are extremely
toxic. Fewer reactions have already been reported with naphthol red than the
other pigments.
BLACK: of iron oxides, carbon. Magnetite
crystals, powdered jet and soot. Black pigment is frequently created into India
ink. Logwood, discovered in Central America and also the West Indies.”
GREEN: Chrome Oxide , Malachite, Ferrocyanides,
Ferricyanides, Monoazo pigment, Cu/Al phthalocyanine, or Cu phthalocyanine.
YELLOW: created of cadmium yellow, ochres,
chrome yellow, or disazodiarylide. Reactions are commonly connected with yellow
pigments because much more pigment is required to attain bright color.”
BROWNS: made of ochre. Ochre is composed of
iron oxides mixed and clay. When dehydrated , ochre modifications to a reddish
colour.”(
Chrome Oxide
Green Dye)
ORANGE: produced of disazodiarylide,
disazopyrazolone, or cadmium seleno-sulfide.
BLUE: cobalt blue, or Cu-phtalocyanine.
Blue pigments from minerals incorporate copper carbonate , sodium aluminum
silicate, calcium copper silicate and chromium oxides. The safest blues and
greens are copper salts. Copper-based pigments are considerably safer or far
more stable.(Pigment Green 7)
WHITE: lead carbonate, titanium dioxide,
barium sulfate, or zinc oxide. Titanium oxides are one of many least reactive
white pigments.”
VIOLET: manganese quinacridone, and
different aluminum salts. Dioxazine and carbazole are the most steady purple
pigments.”
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