Color Swatch created using heavy to light application and was applied on 100 lb (163 gsm) drawing paper material.
This color contains the following pigments:
PR101—Mars Orange
Pigment Type
n/a
Chemical Name
iron oxides
Chemical Formula
Fe2O2 or Fe2O3 • H2O
Properties
Mars Orange is a bright, extremely light red and appears almost pinkish when contrasted with darker colors. It has incredible tinting strength and opacity. The synthetic form of Mars Orange is made from iron oxides and is cleaner, brighter, and denser than its ochre-based counterparts.
Permanence
Mars Orange has good permanence and lightfastness.
Toxicity
Mars Orange has no significant hazards.
History
The word Mars refers to the Roman god of iron and war. Mars Orange has been manufactured as a pigment since the 17th century.
Alternate Names
n/a
PBr6—Mars Brown
Pigment Type
n/a
Chemical Name
iron oxide
Chemical Formula
Fe2O3
Properties
Mars Brown has similar general properties to the pure red oxides, and it is often a mix of synthetic forms of oxides such as PY42, PR101, and PBk11. Its tinting strength is low, and it dries quickly. Hues vary based on manufacturer.
Permanence
Mars Brown has excellent permanence and lightfastness, with outstanding resistance to chemicals, heat, and weather.
Toxicity
Mars Brown is not considered toxic, although care should be taken not to breathe its dust.
History
Unknown.
Alternate Names
Brown Iron Oxide.