Jo Sonja's Artist Acrylic - Purple Madder, 2.5 oz tube

Item #:00722-6414
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Purple Madder
Purple Madder
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Product Details

Color:
Purple Madder
Size:
75 ml
Format:
Tube
No.
610

Pigment Information

This color contains the following pigments:

PR175-Benzimidazolone Red

PV23RS-Dioxazine Violet


Pigment Name

PR175-Benzimidazolone Red

Pigment Type

monoazo, organic synthetic

Chemical Formula

C26H19N5O5

Properties

Benzimidazolone Red is a transparent, dull, yellowish red with an average drying time. It lacks the color, purity, and brightness characteristic of most organic synthetic pigments.

Permanence

Benzimidazolone Red has excellent lightfastness.

Toxicity

Benzimidazolone Red 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.


Pigment Name

PV23RS-Dioxazine Violet

Pigment Type

organic

Chemical Name

carbazole dioxazine

Chemical Formula

C34H22Cl2N4O2

Properties

Dioxazine Violet is transparent and has very high tinting strength. It is a staining pigment, very dark valued when it is used at full strength. Concentrated, it paints out nearly black, but it mixes with Titanium White to form bright, opaque tints of purple. Pigment PV23 produces slightly redder shades than PV37. Because the hue can vary with the conditions of preparation and grinding, it may be offered in red shade, blue shade, and so forth. PV23RS is a preparation of PV23 that tends to reddish hue.

Permanence

Dioxazine Violet has good lightfastness. There may be some concern about it fading or shifting in color in tints and washes. Some artists have reported that PV37, a molecular variant, is more lightfast than PV23.

Toxicity

History

Two molecular variants of Dioxazine Violet, PV23 and PV37, are available. They have similar properties, but mix slightly differently.


Safety Data Sheet