Grumbacher Academy Watercolor - Cadmium Red Light Hue, 7.5 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
- Color:
- Cadmium Red Light Hue
- Size:
- 7.5 ml
- No.
- 027
- Mfg #:
- A027
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:
PR188 -Naphthol Red
PY65-Hansa Yellow
PY97-Permanent Yellow
PR178-Perylene Red
Pigment Name
PR188 -Naphthol Red
Pigment Type
organic monoazo
Chemical Formula
C33H24Cl2N2O6
Properties
This Naphthol Red is yellowish, with a high tinting strength and average drying time. It produces warmer shades and tints.
Permanence
This Naphthol Red has excellent lightfastness, though it is generally not considered adequate 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
Naphthol pigments are actually dyes that are "laked" to form pigments. First developed by the German chemical company Hoechst A.G. before World War I, their use in artist paints began in the 1920s.
Pigment Name
PY65-Hansa Yellow
Pigment Type
monoazo
Chemical Formula
C18H18N4O6
Properties
This Hansa Yellow ranges from reddish yellow to greenish yellow with temperature shifts from cool to warm hues. It has good tinting strength and average to slow drying time.
Permanence
This Hansa Yellow has excellent lightfastness, particularly in the darker shades.
Toxicity
Hansa Yellow has no significant acute hazards, though its chronic hazards have not been well studied.
History
Hansa Yellows were first made in Germany just before WW1 from a series of synthetic dyestuffs called Pigment Yellow. They were intended to be a synthetic replacement for Cadmium Yellow.
Pigment Name
PY97-Permanent Yellow
Pigment Type
organic, monoazo
Chemical Formula
C26H27ClN4O8
Properties
Permanent Yellow PY97 ranges from reddish yellow to greenish yellow with temperature shifts from cool to warm hues. It has good tinting strength and average to slow drying time. Similar in shade to Hansa Yellow 1, it offers much better fastness properties and good heat stability.
Permanence
Pigment PY97 has excellent lightfastness, particularly in the darker shades.
Toxicity
No significant acute hazards of PY97 are known, though chronic hazards have not been well studied.
History
Hansa Yellows were first made in Germany just before WW1 from a series of synthetic dyestuffs called Pigment Yellow. They were intended to be a synthetic replacement for Cadmium Yellow. Permanent Yellow (PY97) represents a further development of this line, with the aim of producing a yellow pigment that is suitable for exterior use.
Pigment Name
PR178-Perylene Red
Pigment Type
organic, anthraquinone
Chemical Formula
C48H26N6O4
Properties
Perylene Red is a moderately intense, semi-opaque, medium red pigment, appearing somewhere between a Cadmium Red and a Cadmium Deep Red hue. It has excellent brightness and tinting strength. Its partial transparency makes it useful as a glazing color.
Permanence
Perylene Red has excellent lightfastness and permanence, but its tints may darken after extended exposure to sunlight. It is not considered suitable for exterior use.
Toxicity
Perylene Red has no significant acute toxicity. Its long term hazards are currently unknown.
History
Perylenes have been used as vat dyes since 1912, but they were not manufactured and sold as pigments until 1957.
Safety Data Sheet
UPC Code: 014173350558
ASIN #: B000G2F458