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Holbein Acryla Gouache - Crimson, 20 ml tube

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Holbein Acryla Gouache - Crimson, 20 ml tube
Holbein Acryla Gouache - Crimson, 20 ml tube

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Product Details

Color:
Crimson
Mfg #:
D001
No.
001
Size:
20 ml

Pigment Information

This color contains the following pigments:

PR122-Quinacridone Magenta

PR184-Permanent Rubine


Pigment Name

PR122-Quinacridone Magenta

Pigment Type

organic, quinacridone

Chemical Formula

C22H16N2O2

Properties

Quinacridone Magenta is a semi-transparent and powerful bluish red with an impressive mixing range. It makes an excellent glazing color and is one of the bluest of the Quinacridone colors. The pigment's properties vary considerably, depending on how it is ground. Quinacridone pigments have relatively low tinting strength in general. For this reason, quinacridone colors are often expensive, because more pigment is required in the formulation.

Permanence

Quinacridone Magenta offers very good lightfastness in most media, but some have argued that it is less lightfast in watercolor form. Although Quinacridone Magenta received only a passing grade of "fair" under ASTM test protocols, other test results have rated the pigment very good to excellent. Transparent reddish violet pigments in general have more problems with lightfastness than any other range of colors. PR122 is often used as the Magenta of CMYK (four color) process printing because it offers a better tradeoff between tinting strength and lightfastness than other pigments in its class.

Toxicity

Quinacridone Magenta has no acute hazards. Overexposure to quinacridone pigments may cause skin irritation. Quinicridone pigments contain a compound found to be a skin, eye, and respiratory irritant.

History

Quinacridone Magenta came from a red violet aniline dye that was first produced in 1858 by Natanson. It was called Magenta to commemorate a battle in Magenta, Italy. Over time, Magenta became the standard color name for a deep, violet red. Although quinacridone compounds became known in the late 19th century, methods of manufacturing so as to make them practical for use as commercial pigments did not begin until the 1950s. PR122 has become particularly popular in the formulation of Magenta for CMYK process printing.


Pigment Name

PR184-Permanent Rubine

Pigment Type

organic, monoazo

Chemical Formula

Properties

Permanent Rubine is a transparent, bluish red pigment with high tinting strength.

Permanence

Although not absolutely permanent, pigment PR184 has very good lightfastness and is considered superior to other comparable transparent red pigments.

Toxicity

Permanent Rubine has no acute toxicity.

History

Permanent Rubine is often used as a principal component of magenta in process color printing. It replaces the widely used pigment Lithol Rubine (PR57:1) in applications where lightfastness is paramount.


Safety Data Sheet

UPC Code: 4900669070016

ASIN #: B0006IKD58