PV16-Manganese Violet
PBr33-Zinc Iron Chromite Brown
PV16-Manganese Violet
inorganic
manganese ammonium pyrophosphate
(NH4)2Mn2(P2O7)2 - Mn3(PO4)2 * 3H2O or H4O7P2H3NMn
Manganese Violet is a semi-transparent, bluish-violet pigment with a discrete opacity and low tinting strength. It is the reddest of the violets, and it covers and dries well in oil and tempera. It also performs well in pastel, encaustic, and watercolor. Manganese Violet is not well suited for fresco or acrylic painting. There can be significant differences in color across brands. It shares similar properties with bluish shades of Cobalt Violet.
Manganese Violet has excellent permanence and lightfastness, and it is one of the most lightfast, balanced violets in watercolor form.
Manganese Violet is highly toxic if inhaled and moderately toxic if ingested.
This pigment was developed in 1868 by E. Leykauf to replace the more expensive Cobalt Violet. It was not offered as an artists’ pigment until 1890.
PBr33-Zinc Iron Chromite Brown
inorganic
zinc-iron-chromite spinel
ZnO + Fe203 + Cr2O3
Zinc Iron Chromite Brown is a dark reddish brown pigment that is opaque and staining.
Zinc Iron Chromite Brown is exceptionally lightfast, heat resistant, weather resistant, and durable.
Zinc Iron Chromite Brown has not been identified as hazardous, but it is likely to contain impurities that are irritating to the skin or lungs. Pigment from natural ores may contain traces of heavy metals.
Because of its exceptional durability and heat resistance, Zinc Iron Chromite is used as a brown pigment in ceramics.
UPC Code: 4012380231505