Color Swatch created using heavy application/medium application/50% tint and was applied on acrylic primed canvas (7 oz) material.
This color contains the following pigments:
PW7—Zinc Sulphide White
Pigment Type
inorganic
Chemical Name
zinc sulfide
Chemical Formula
ZnS
Properties
Zinc Sulphide White is a semi-transparent yellowish white pigment. Zinc sulfide and zinc oxide (PW4) are often combined to create a more natural white color. Transparency increases as particle size decreases. When slight impurities are added, zinc sulphide has phospherescent and electroluminescent properties. It is often used to manufacture fluorescent or glow-in-the-dark paints.
Permanence
Zinc Sulphide White has excellent permanence and lightfastness.
Toxicity
Zinc Sulphide is non-toxic, but ore deposits often contain lead. Traces of lead and other impurities may be present in pigment powders. Ingestion is not recommended.
History
Zinc sulfide, when combined with slight impurites, has phospherescent properties. It is often used for "invisible ink" that glows with exposure to ultraviolet light. Zinc sulfide is used in the manufacture of fluorescent paints.
Alternate Names
Chinese White
PY154—Benzimidazolone Yellow
Pigment Type
monoazo
Chemical Name
n/a
Chemical Formula
n/a
Properties
Benzimidazolone Yellow is a pigment with dull tints and an average drying time.
Permanence
Benzimidazolone Yellow has excellent lightfastness.
Toxicity
Benzimidazolone Yellow is not considered toxic.
History
The benzimidazolone group of pigments was developed and patented in 1960 by Hoechst A.G., a German chemical manufacturer that was a forerunner of the pharmaceutical company Aventis.
Alternate Names
Benzimidazolone.
PBr24—Chrome Antimony Titanate
Pigment Type
inorganic
Chemical Name
chrome antimony titanate
Chemical Formula
n/a
Properties
Chrome Antimony Titanate is a staining, opaque yellowish brown pigment. It is often used to replace the original Naples Yellow or Chrome Yellow, both of which are highly toxic pigments.
Permanence
Chrome Antimony Titanate has excellent lightfastness and weatherfastness.
Toxicity
Chrome Antimony Titanate has negligible acute toxicity. In testing with rabbits, it was shown to be minimally irritating to the skin and eyes. Since it has the hexavalent structure of a chromium yellow, whether Chrome Antimony Titanate is a potential carcinogen has been a subject of controversy. At this time, regulations in the USA do not require it to be labeled in any way.
History
Chrome Antimony Titanate is used in ceramics, plastics, and industrial coatings.
Alternate Names
Chrome Antimony Titanium Buff Rutile, Chrome Titanate, Chrome Titanate Brown
