Holbein Irodori Artist Gouache - Orange, 15 ml, Tube
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Products bearing the AP seal of the Art & Creative Materials Institute, Inc. (ACMI) are certified non-toxic. A product can be certified non-toxic only if it contains no materials in sufficient quantities to be toxic or injurious to humans, or to cause acute or chronic health problems when used as intended. See [Health and Safety ](https://www.dickblick.com/learning-resources/product-info/health-safety/ "Learning-resources/product-info/health-safety")for further information.
Product Details
- Description:
- Irodori Artist Gouache
- Color:
- Orange
- Size:
- 15 ml (0.5 oz)
- Format:
- Tube
- No.
- G811
Colors on Monitors -
Due to differences in users’ monitors, the colors presented are an approximation of the true color.
Reviews
Pigment Information
This color contains the following pigments:
PY42-Yellow Iron Oxide
PR9-Naphthol Red
Pigment Name
PY42-Yellow Iron Oxide
Chemical Name
iron(III)-oxide, hydrated
Chemical Formula
Fe2O3 • H2O
Properties
Yellow Ochre provides artists with earthtones from cream to brown. It has good hiding power, produces a quick drying paint, and can be safely mixed with other pigments. Its transparency varies widely from opaque shades to more transparent ones, which are valued for their use as glazes. If gypsum is present, Yellow Ochre is not suitable for frescoing. (See Brown Ochre, PY43.) PY42 is made from synthetic iron oxides. PY43 is made from natural iron oxide.
Permanence
Yellow Ochre has excellent permanence because ochres are some of the most permanent pigments available.
Toxicity
Yellow Ochre is non-toxic unless it contains manganese.
History
Ochre comes from the Greek word ochros, meaning pale yellow. It was one of the first pigments to be used by human beings, and evidence of its use has been found at 300,000 year old sites in France and the former Czechoslovakia.
Pigment Name
PR9-Naphthol Red
Pigment Type
monoazo
Chemical Formula
C24H17Cl2N3O3
Properties
This Naphthol Red is a bright deep red with bluish undertones. It has an average drying time.
Permanence
This Naphthol Red has fair to good lightfastness, not because of its masstone, but because it fades in tints. Not suitable for exterior use.
Toxicity
Naphthol Reds are not considered toxic. They may cause eye, skin, or respiratory irritation. Contact with dry pigment should be avoided.
History
Unknown.
Safety Data Sheet
UPC Code: 4900669138112